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Finding the Third Proportional to 15,494 and 17,798

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Solution

The third proportional to 15,494 and 17,798 is: 20,444.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,494 : 17,798 = 17,798 : x
  2. Step 2: Convert to fraction form
    15,494/17,798 = 17,798/x
  3. Step 3: Cross multiply
    15,494x = 17,798 × 17,798
  4. Step 4: Simplify right side
    15,494x = 316,768,804
  5. Step 5: Solve for x
    x = 316,768,804/15,494
  6. Step 6: Final answer
    x = 20,444.61

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.