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Finding the Third Proportional to 8,915.06 and 19,531.13

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Solution

The third proportional to 8,915.06 and 19,531.13 is: 42,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.06 : 19,531.13 = 19,531.13 : x
  2. Step 2: Convert to fraction form
    8,915.06/19,531.13 = 19,531.13/x
  3. Step 3: Cross multiply
    8,915.06x = 19,531.13 × 19,531.13
  4. Step 4: Simplify right side
    8,915.06x = 381,464,843.77
  5. Step 5: Solve for x
    x = 381,464,843.77/8,915.06
  6. Step 6: Final answer
    x = 42,788.80

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.