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Finding the Third Proportional to 18,818.38 and 27,707.75

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Solution

The third proportional to 18,818.38 and 27,707.75 is: 40,796.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.38 : 27,707.75 = 27,707.75 : x
  2. Step 2: Convert to fraction form
    18,818.38/27,707.75 = 27,707.75/x
  3. Step 3: Cross multiply
    18,818.38x = 27,707.75 × 27,707.75
  4. Step 4: Simplify right side
    18,818.38x = 767,719,667.12
  5. Step 5: Solve for x
    x = 767,719,667.12/18,818.38
  6. Step 6: Final answer
    x = 40,796.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.