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Finding the Third Proportional to 14,272 and 18,942

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Solution

The third proportional to 14,272 and 18,942 is: 25,140.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272 : 18,942 = 18,942 : x
  2. Step 2: Convert to fraction form
    14,272/18,942 = 18,942/x
  3. Step 3: Cross multiply
    14,272x = 18,942 × 18,942
  4. Step 4: Simplify right side
    14,272x = 358,799,364
  5. Step 5: Solve for x
    x = 358,799,364/14,272
  6. Step 6: Final answer
    x = 25,140.09

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.