Home / 42,426.78-63,640.20-14,724.78

Finding the Fourth Proportional to 42,426.78, 63,640.20 and 14,724.78

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Solution

The fourth proportional to 42,426.78, 63,640.20 and 14,724.78 is: 22,087.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,426.78 : 63,640.20 = 14,724.78 : x
  2. Step 2: Convert to fraction form
    42,426.78/63,640.20 = 14,724.78/x
  3. Step 3: Cross multiply
    42,426.78x = 63,640.20 × 14,724.78
  4. Step 4: Simplify right side
    42,426.78x = 937,087,944.16
  5. Step 5: Solve for x
    x = 937,087,944.16/42,426.78
  6. Step 6: Final answer
    x = 22,087.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.