Question

Third proportion of 10 and 20 is .

Answer 1

Answer:

Hope it helps........

Answer 2

Answer:

Third proportion is 40.

Step-by-step explanation:

Proportion basically means 'in ratio'

let us assume the third proportion to be an unknown quantity say m.

Now, as 10 is proportionate to 20, 20 will be proportionate to m.

So, we get 10: 20 = 20: m

or, we get $\frac{10}{20}$ = $\frac{20}{m}$        

cross multiplying both sides, we get m = $\frac{20 \times 20}{10}$

on simplification, we get m = 40

or, the third proportion is 40.