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Finding the Third Proportional to 15,110.81 and 21,241.97

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Solution

The third proportional to 15,110.81 and 21,241.97 is: 29,860.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.81 : 21,241.97 = 21,241.97 : x
  2. Step 2: Convert to fraction form
    15,110.81/21,241.97 = 21,241.97/x
  3. Step 3: Cross multiply
    15,110.81x = 21,241.97 × 21,241.97
  4. Step 4: Simplify right side
    15,110.81x = 451,221,236.38
  5. Step 5: Solve for x
    x = 451,221,236.38/15,110.81
  6. Step 6: Final answer
    x = 29,860.82

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.