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Finding the Third Proportional to 18,844.88 and 38,989.13

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Solution

The third proportional to 18,844.88 and 38,989.13 is: 80,666.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,844.88 : 38,989.13 = 38,989.13 : x
  2. Step 2: Convert to fraction form
    18,844.88/38,989.13 = 38,989.13/x
  3. Step 3: Cross multiply
    18,844.88x = 38,989.13 × 38,989.13
  4. Step 4: Simplify right side
    18,844.88x = 1,520,151,868.27
  5. Step 5: Solve for x
    x = 1,520,151,868.27/18,844.88
  6. Step 6: Final answer
    x = 80,666.59

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.