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Finding the Fourth Proportional to 42.46, 63.56 and 24.38

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Solution

The fourth proportional to 42.46, 63.56 and 24.38 is: 36.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42.46 : 63.56 = 24.38 : x
  2. Step 2: Convert to fraction form
    42.46/63.56 = 24.38/x
  3. Step 3: Cross multiply
    42.46x = 63.56 × 24.38
  4. Step 4: Simplify right side
    42.46x = 1,549.59
  5. Step 5: Solve for x
    x = 1,549.59/42.46
  6. Step 6: Final answer
    x = 36.50

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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.