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Finding the Fourth Proportional to 28,658.31, 39,546.14 and 16,082.79

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Solution

The fourth proportional to 28,658.31, 39,546.14 and 16,082.79 is: 22,192.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,658.31 : 39,546.14 = 16,082.79 : x
  2. Step 2: Convert to fraction form
    28,658.31/39,546.14 = 16,082.79/x
  3. Step 3: Cross multiply
    28,658.31x = 39,546.14 × 16,082.79
  4. Step 4: Simplify right side
    28,658.31x = 636,012,184.52
  5. Step 5: Solve for x
    x = 636,012,184.52/28,658.31
  6. Step 6: Final answer
    x = 22,192.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.