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Finding the Third Proportional to 20,474 and 28,995

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Solution

The third proportional to 20,474 and 28,995 is: 41,062.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474 : 28,995 = 28,995 : x
  2. Step 2: Convert to fraction form
    20,474/28,995 = 28,995/x
  3. Step 3: Cross multiply
    20,474x = 28,995 × 28,995
  4. Step 4: Simplify right side
    20,474x = 840,710,025
  5. Step 5: Solve for x
    x = 840,710,025/20,474
  6. Step 6: Final answer
    x = 41,062.32

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.