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Finding the Fourth Proportional to 41,520.80, 62,243.40 and 15,219.20

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Solution

The fourth proportional to 41,520.80, 62,243.40 and 15,219.20 is: 22,814.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,520.80 : 62,243.40 = 15,219.20 : x
  2. Step 2: Convert to fraction form
    41,520.80/62,243.40 = 15,219.20/x
  3. Step 3: Cross multiply
    41,520.80x = 62,243.40 × 15,219.20
  4. Step 4: Simplify right side
    41,520.80x = 947,294,753.28
  5. Step 5: Solve for x
    x = 947,294,753.28/41,520.80
  6. Step 6: Final answer
    x = 22,814.94

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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.