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Finding the Fourth Proportional to 39.27, 59.24 and 37.92

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Solution

The fourth proportional to 39.27, 59.24 and 37.92 is: 57.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.27 : 59.24 = 37.92 : x
  2. Step 2: Convert to fraction form
    39.27/59.24 = 37.92/x
  3. Step 3: Cross multiply
    39.27x = 59.24 × 37.92
  4. Step 4: Simplify right side
    39.27x = 2,246.38
  5. Step 5: Solve for x
    x = 2,246.38/39.27
  6. Step 6: Final answer
    x = 57.20

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.