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Finding the Fourth Proportional to 41.57, 62.34 and 12.66

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Solution

The fourth proportional to 41.57, 62.34 and 12.66 is: 18.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.57 : 62.34 = 12.66 : x
  2. Step 2: Convert to fraction form
    41.57/62.34 = 12.66/x
  3. Step 3: Cross multiply
    41.57x = 62.34 × 12.66
  4. Step 4: Simplify right side
    41.57x = 789.22
  5. Step 5: Solve for x
    x = 789.22/41.57
  6. Step 6: Final answer
    x = 18.99

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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.