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Finding the Third Proportional to 17,808 and 38,471

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Solution

The third proportional to 17,808 and 38,471 is: 83,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,808 : 38,471 = 38,471 : x
  2. Step 2: Convert to fraction form
    17,808/38,471 = 38,471/x
  3. Step 3: Cross multiply
    17,808x = 38,471 × 38,471
  4. Step 4: Simplify right side
    17,808x = 1,480,017,841
  5. Step 5: Solve for x
    x = 1,480,017,841/17,808
  6. Step 6: Final answer
    x = 83,109.72

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.