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Finding the Fourth Proportional to 40,438.92, 60,672.90 and 14,147.52

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Solution

The fourth proportional to 40,438.92, 60,672.90 and 14,147.52 is: 21,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,438.92 : 60,672.90 = 14,147.52 : x
  2. Step 2: Convert to fraction form
    40,438.92/60,672.90 = 14,147.52/x
  3. Step 3: Cross multiply
    40,438.92x = 60,672.90 × 14,147.52
  4. Step 4: Simplify right side
    40,438.92x = 858,371,066.21
  5. Step 5: Solve for x
    x = 858,371,066.21/40,438.92
  6. Step 6: Final answer
    x = 21,226.36

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1.5x scale

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.