Question

First, Second and third terms of a proportion are respectively 20, 18 and 40. Find its fourth term​

Answer 1

Answer:

36

Step-by-step explanation:

20/18=40/x

x=36

Answer 2

Answer:

36

Step-by-step explanation:

The terms are in the propotion of a:b=c:d

a=20, b=18,c=40 and d=?

Thus, 20:18=40:?

          20/18=40/?

          ?=(40*18)/20=36