Question

Which number should be added to each of the numbers 12, 16 and 21 so that the resulting numbers would be in continued proportion?​

Answer 1

Answer:

Let the number x be subtracted from 12, 16 and 21 so that resultant numbers are in continued proportion. ∴ (12 − x), (16 − x), (21 − x) are in continued proportion. Thus, the number −4 must be subtracted from 12, 16 and 21 so that resultant numbers are in continued proportion.

Answer 2

Step-by-step explanation:

Let the number x be subtracted from 12, 16 and 12

so that resultant numbers are in continued proportion.

Therefore, (12-×), (16-×), (21-×) are in continued proportion.

Thus, the number -4 must be subtracted from 12, 16 and 21 .

So that resultant numbers are in continued proportion.