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Finding the Third Proportional to 18,191.14 and 39,763.72

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Solution

The third proportional to 18,191.14 and 39,763.72 is: 86,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.14 : 39,763.72 = 39,763.72 : x
  2. Step 2: Convert to fraction form
    18,191.14/39,763.72 = 39,763.72/x
  3. Step 3: Cross multiply
    18,191.14x = 39,763.72 × 39,763.72
  4. Step 4: Simplify right side
    18,191.14x = 1,581,153,639.48
  5. Step 5: Solve for x
    x = 1,581,153,639.48/18,191.14
  6. Step 6: Final answer
    x = 86,918.87

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These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.