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Finding the Fourth Proportional to 21,092.27, 29,107.08 and 11,660.63

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Solution

The fourth proportional to 21,092.27, 29,107.08 and 11,660.63 is: 16,091.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,092.27 : 29,107.08 = 11,660.63 : x
  2. Step 2: Convert to fraction form
    21,092.27/29,107.08 = 11,660.63/x
  3. Step 3: Cross multiply
    21,092.27x = 29,107.08 × 11,660.63
  4. Step 4: Simplify right side
    21,092.27x = 339,406,744.73
  5. Step 5: Solve for x
    x = 339,406,744.73/21,092.27
  6. Step 6: Final answer
    x = 16,091.53

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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.