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Finding the Third Proportional to 8,712 and 20,568

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Solution

The third proportional to 8,712 and 20,568 is: 48,558.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712 : 20,568 = 20,568 : x
  2. Step 2: Convert to fraction form
    8,712/20,568 = 20,568/x
  3. Step 3: Cross multiply
    8,712x = 20,568 × 20,568
  4. Step 4: Simplify right side
    8,712x = 423,042,624
  5. Step 5: Solve for x
    x = 423,042,624/8,712
  6. Step 6: Final answer
    x = 48,558.61

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.