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Finding the Third Proportional to 18,091 and 38,960

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Solution

The third proportional to 18,091 and 38,960 is: 83,902.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091 : 38,960 = 38,960 : x
  2. Step 2: Convert to fraction form
    18,091/38,960 = 38,960/x
  3. Step 3: Cross multiply
    18,091x = 38,960 × 38,960
  4. Step 4: Simplify right side
    18,091x = 1,517,881,600
  5. Step 5: Solve for x
    x = 1,517,881,600/18,091
  6. Step 6: Final answer
    x = 83,902.58

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.