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Finding the Third Proportional to 18,589.50 and 38,429.44

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Solution

The third proportional to 18,589.50 and 38,429.44 is: 79,443.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589.50 : 38,429.44 = 38,429.44 : x
  2. Step 2: Convert to fraction form
    18,589.50/38,429.44 = 38,429.44/x
  3. Step 3: Cross multiply
    18,589.50x = 38,429.44 × 38,429.44
  4. Step 4: Simplify right side
    18,589.50x = 1,476,821,666.57
  5. Step 5: Solve for x
    x = 1,476,821,666.57/18,589.50
  6. Step 6: Final answer
    x = 79,443.86

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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.