Home / 25,457.78-35,132.93-15,903.32

Finding the Fourth Proportional to 25,457.78, 35,132.93 and 15,903.32

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Solution

The fourth proportional to 25,457.78, 35,132.93 and 15,903.32 is: 21,947.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,457.78 : 35,132.93 = 15,903.32 : x
  2. Step 2: Convert to fraction form
    25,457.78/35,132.93 = 15,903.32/x
  3. Step 3: Cross multiply
    25,457.78x = 35,132.93 × 15,903.32
  4. Step 4: Simplify right side
    25,457.78x = 558,729,973.15
  5. Step 5: Solve for x
    x = 558,729,973.15/25,457.78
  6. Step 6: Final answer
    x = 21,947.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.