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Finding the Fourth Proportional to 13,462.85, 20,192.70 and 3,602.90

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Solution

The fourth proportional to 13,462.85, 20,192.70 and 3,602.90 is: 5,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,462.85 : 20,192.70 = 3,602.90 : x
  2. Step 2: Convert to fraction form
    13,462.85/20,192.70 = 3,602.90/x
  3. Step 3: Cross multiply
    13,462.85x = 20,192.70 × 3,602.90
  4. Step 4: Simplify right side
    13,462.85x = 72,752,177.87
  5. Step 5: Solve for x
    x = 72,752,177.87/13,462.85
  6. Step 6: Final answer
    x = 5,403.92

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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.