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Finding the Third Proportional to 15,939 and 18,063

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Solution

The third proportional to 15,939 and 18,063 is: 20,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,939 : 18,063 = 18,063 : x
  2. Step 2: Convert to fraction form
    15,939/18,063 = 18,063/x
  3. Step 3: Cross multiply
    15,939x = 18,063 × 18,063
  4. Step 4: Simplify right side
    15,939x = 326,271,969
  5. Step 5: Solve for x
    x = 326,271,969/15,939
  6. Step 6: Final answer
    x = 20,470.04

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.