Home / 21,050.31-29,049.27-11,618.87

Finding the Fourth Proportional to 21,050.31, 29,049.27 and 11,618.87

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Solution

The fourth proportional to 21,050.31, 29,049.27 and 11,618.87 is: 16,033.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050.31 : 29,049.27 = 11,618.87 : x
  2. Step 2: Convert to fraction form
    21,050.31/29,049.27 = 11,618.87/x
  3. Step 3: Cross multiply
    21,050.31x = 29,049.27 × 11,618.87
  4. Step 4: Simplify right side
    21,050.31x = 337,519,691.72
  5. Step 5: Solve for x
    x = 337,519,691.72/21,050.31
  6. Step 6: Final answer
    x = 16,033.95

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Why These Related Problems?

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