Question

find the fourth proprotional to 3,8,15.​

Answer 1

Answer:

24

Step-by-step explanation:

since 3+5=8

8+7=15

15+9=24

you have to add odd numbers

you can see the underlined no.s are odd

Answer 2

Step-by-step explanation:

Let the required fourth proportional be x.

Then, 3,8,15,x are in proportion

So, product of extremes = product of means.

3 × x = 8 × 15

=x = 8×15/3=40

Hence, the fourth proportional to 3,8,15 is 40