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Finding the Third Proportional to 18,019.97 and 27,713.39

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Solution

The third proportional to 18,019.97 and 27,713.39 is: 42,621.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.97 : 27,713.39 = 27,713.39 : x
  2. Step 2: Convert to fraction form
    18,019.97/27,713.39 = 27,713.39/x
  3. Step 3: Cross multiply
    18,019.97x = 27,713.39 × 27,713.39
  4. Step 4: Simplify right side
    18,019.97x = 768,032,019.93
  5. Step 5: Solve for x
    x = 768,032,019.93/18,019.97
  6. Step 6: Final answer
    x = 42,621.16

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.