Home / 42,280.92-63,426.60-13,817.20

Finding the Fourth Proportional to 42,280.92, 63,426.60 and 13,817.20

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Solution

The fourth proportional to 42,280.92, 63,426.60 and 13,817.20 is: 20,727.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,280.92 : 63,426.60 = 13,817.20 : x
  2. Step 2: Convert to fraction form
    42,280.92/63,426.60 = 13,817.20/x
  3. Step 3: Cross multiply
    42,280.92x = 63,426.60 × 13,817.20
  4. Step 4: Simplify right side
    42,280.92x = 876,378,057.94
  5. Step 5: Solve for x
    x = 876,378,057.94/42,280.92
  6. Step 6: Final answer
    x = 20,727.51

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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.