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Finding the Third Proportional to 8,656.88 and 21,176.44

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Solution

The third proportional to 8,656.88 and 21,176.44 is: 51,801.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.88 : 21,176.44 = 21,176.44 : x
  2. Step 2: Convert to fraction form
    8,656.88/21,176.44 = 21,176.44/x
  3. Step 3: Cross multiply
    8,656.88x = 21,176.44 × 21,176.44
  4. Step 4: Simplify right side
    8,656.88x = 448,441,505.19
  5. Step 5: Solve for x
    x = 448,441,505.19/8,656.88
  6. Step 6: Final answer
    x = 51,801.78

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Why These Related Problems?

These problems maintain the same ratio (2.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.