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Finding the Third Proportional to 5,481 and 13,115.25

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Solution

The third proportional to 5,481 and 13,115.25 is: 31,382.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481 : 13,115.25 = 13,115.25 : x
  2. Step 2: Convert to fraction form
    5,481/13,115.25 = 13,115.25/x
  3. Step 3: Cross multiply
    5,481x = 13,115.25 × 13,115.25
  4. Step 4: Simplify right side
    5,481x = 172,009,782.56
  5. Step 5: Solve for x
    x = 172,009,782.56/5,481
  6. Step 6: Final answer
    x = 31,382.92

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.