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Finding the Third Proportional to 8,511.75 and 18,039.38

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Solution

The third proportional to 8,511.75 and 18,039.38 is: 38,231.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.75 : 18,039.38 = 18,039.38 : x
  2. Step 2: Convert to fraction form
    8,511.75/18,039.38 = 18,039.38/x
  3. Step 3: Cross multiply
    8,511.75x = 18,039.38 × 18,039.38
  4. Step 4: Simplify right side
    8,511.75x = 325,419,050.39
  5. Step 5: Solve for x
    x = 325,419,050.39/8,511.75
  6. Step 6: Final answer
    x = 38,231.74

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.