Question

Find the fourth proportional to
(i)14 Rs., 20 Rs., 21kg​

Answer 1

Answer:

get 20 rs then 21 then add both

Step-by-step explanation:

20 +21 =41 this is erong ans k

Answer 2

The fourth proportional to Rs.14, Rs.20, 21 kg​ is 30 kg.

Given:

Rs.14, Rs.20, 21 kg

To find:

The fourth proportional

Solution:

Let the required term be X.

We know that the given terms are in proportion to each other.

So, Rs.14, Rs.20, 21 kg​, X are in proportion.

It could be written as 14: 20::21: X.

14/20=21/X

On solving, we get

14/20×X=21

X=21×20/14

X=3×20/2

X=3×10

X=30

So, X=30 kg.

Therefore, the fourth proportional to Rs.14, Rs.20, 21 kg​ is 30 kg.