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Finding the Fourth Proportional to 38,490.50, 57,737.43 and 12,197.18

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Solution

The fourth proportional to 38,490.50, 57,737.43 and 12,197.18 is: 18,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.50 : 57,737.43 = 12,197.18 : x
  2. Step 2: Convert to fraction form
    38,490.50/57,737.43 = 12,197.18/x
  3. Step 3: Cross multiply
    38,490.50x = 57,737.43 × 12,197.18
  4. Step 4: Simplify right side
    38,490.50x = 704,233,826.45
  5. Step 5: Solve for x
    x = 704,233,826.45/38,490.50
  6. Step 6: Final answer
    x = 18,296.30

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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.