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Finding the Third Proportional to 14,170 and 20,863

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Solution

The third proportional to 14,170 and 20,863 is: 30,717.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,170 : 20,863 = 20,863 : x
  2. Step 2: Convert to fraction form
    14,170/20,863 = 20,863/x
  3. Step 3: Cross multiply
    14,170x = 20,863 × 20,863
  4. Step 4: Simplify right side
    14,170x = 435,264,769
  5. Step 5: Solve for x
    x = 435,264,769/14,170
  6. Step 6: Final answer
    x = 30,717.34

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.