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Finding the Third Proportional to 7,021 and 15,599

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Solution

The third proportional to 7,021 and 15,599 is: 34,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021 : 15,599 = 15,599 : x
  2. Step 2: Convert to fraction form
    7,021/15,599 = 15,599/x
  3. Step 3: Cross multiply
    7,021x = 15,599 × 15,599
  4. Step 4: Simplify right side
    7,021x = 243,328,801
  5. Step 5: Solve for x
    x = 243,328,801/7,021
  6. Step 6: Final answer
    x = 34,657.29

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.