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Finding the Fourth Proportional to 41.71, 62.49 and 21.37

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Solution

The fourth proportional to 41.71, 62.49 and 21.37 is: 32.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.71 : 62.49 = 21.37 : x
  2. Step 2: Convert to fraction form
    41.71/62.49 = 21.37/x
  3. Step 3: Cross multiply
    41.71x = 62.49 × 21.37
  4. Step 4: Simplify right side
    41.71x = 1,335.41
  5. Step 5: Solve for x
    x = 1,335.41/41.71
  6. Step 6: Final answer
    x = 32.02

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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.