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Finding the Fourth Proportional to 40,327.71, 60,503.86 and 20,620.11

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Solution

The fourth proportional to 40,327.71, 60,503.86 and 20,620.11 is: 30,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,327.71 : 60,503.86 = 20,620.11 : x
  2. Step 2: Convert to fraction form
    40,327.71/60,503.86 = 20,620.11/x
  3. Step 3: Cross multiply
    40,327.71x = 60,503.86 × 20,620.11
  4. Step 4: Simplify right side
    40,327.71x = 1,247,596,248.62
  5. Step 5: Solve for x
    x = 1,247,596,248.62/40,327.71
  6. Step 6: Final answer
    x = 30,936.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.