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Finding the Fourth Proportional to 37,487.52, 51,732.08 and 20,720.16

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Solution

The fourth proportional to 37,487.52, 51,732.08 and 20,720.16 is: 28,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,487.52 : 51,732.08 = 20,720.16 : x
  2. Step 2: Convert to fraction form
    37,487.52/51,732.08 = 20,720.16/x
  3. Step 3: Cross multiply
    37,487.52x = 51,732.08 × 20,720.16
  4. Step 4: Simplify right side
    37,487.52x = 1,071,896,974.73
  5. Step 5: Solve for x
    x = 1,071,896,974.73/37,487.52
  6. Step 6: Final answer
    x = 28,593.44

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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.