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Finding the Third Proportional to 15,427.13 and 31,218.75

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Solution

The third proportional to 15,427.13 and 31,218.75 is: 63,175.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.13 : 31,218.75 = 31,218.75 : x
  2. Step 2: Convert to fraction form
    15,427.13/31,218.75 = 31,218.75/x
  3. Step 3: Cross multiply
    15,427.13x = 31,218.75 × 31,218.75
  4. Step 4: Simplify right side
    15,427.13x = 974,610,351.56
  5. Step 5: Solve for x
    x = 974,610,351.56/15,427.13
  6. Step 6: Final answer
    x = 63,175.11

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.