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Finding the Third Proportional to 9,640.50 and 20,829

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Solution

The third proportional to 9,640.50 and 20,829 is: 45,002.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,640.50 : 20,829 = 20,829 : x
  2. Step 2: Convert to fraction form
    9,640.50/20,829 = 20,829/x
  3. Step 3: Cross multiply
    9,640.50x = 20,829 × 20,829
  4. Step 4: Simplify right side
    9,640.50x = 433,847,241
  5. Step 5: Solve for x
    x = 433,847,241/9,640.50
  6. Step 6: Final answer
    x = 45,002.57

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.