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Finding the Third Proportional to 20,370 and 22,638

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Solution

The third proportional to 20,370 and 22,638 is: 25,158.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370 : 22,638 = 22,638 : x
  2. Step 2: Convert to fraction form
    20,370/22,638 = 22,638/x
  3. Step 3: Cross multiply
    20,370x = 22,638 × 22,638
  4. Step 4: Simplify right side
    20,370x = 512,479,044
  5. Step 5: Solve for x
    x = 512,479,044/20,370
  6. Step 6: Final answer
    x = 25,158.52

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.