Question

If 5,10,20 and x are in proportion then find the value of x

Answer 1

Answer:

∴ x = 40

Step-by-step explanation:

solution,

  or,  5:10 = 20:x

or, 5×x = 10×20 [cross multiply]

or, 5x = 200

or, x = 200/5

∴ x = 40