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Finding the Third Proportional to 15,343.17 and 20,628.42

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Solution

The third proportional to 15,343.17 and 20,628.42 is: 27,734.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.17 : 20,628.42 = 20,628.42 : x
  2. Step 2: Convert to fraction form
    15,343.17/20,628.42 = 20,628.42/x
  3. Step 3: Cross multiply
    15,343.17x = 20,628.42 × 20,628.42
  4. Step 4: Simplify right side
    15,343.17x = 425,531,789.05
  5. Step 5: Solve for x
    x = 425,531,789.05/15,343.17
  6. Step 6: Final answer
    x = 27,734.28

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.