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Finding the Third Proportional to 9,684 and 20,531

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Solution

The third proportional to 9,684 and 20,531 is: 43,527.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,684 : 20,531 = 20,531 : x
  2. Step 2: Convert to fraction form
    9,684/20,531 = 20,531/x
  3. Step 3: Cross multiply
    9,684x = 20,531 × 20,531
  4. Step 4: Simplify right side
    9,684x = 421,521,961
  5. Step 5: Solve for x
    x = 421,521,961/9,684
  6. Step 6: Final answer
    x = 43,527.67

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.