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Finding the Fourth Proportional to 40,636.70, 60,933.13 and 18,437.96

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Solution

The fourth proportional to 40,636.70, 60,933.13 and 18,437.96 is: 27,646.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,636.70 : 60,933.13 = 18,437.96 : x
  2. Step 2: Convert to fraction form
    40,636.70/60,933.13 = 18,437.96/x
  3. Step 3: Cross multiply
    40,636.70x = 60,933.13 × 18,437.96
  4. Step 4: Simplify right side
    40,636.70x = 1,123,482,613.61
  5. Step 5: Solve for x
    x = 1,123,482,613.61/40,636.70
  6. Step 6: Final answer
    x = 27,646.99

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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.