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Finding the Third Proportional to 18,109.41 and 39,898.41

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Solution

The third proportional to 18,109.41 and 39,898.41 is: 87,903.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.41 : 39,898.41 = 39,898.41 : x
  2. Step 2: Convert to fraction form
    18,109.41/39,898.41 = 39,898.41/x
  3. Step 3: Cross multiply
    18,109.41x = 39,898.41 × 39,898.41
  4. Step 4: Simplify right side
    18,109.41x = 1,591,882,821.29
  5. Step 5: Solve for x
    x = 1,591,882,821.29/18,109.41
  6. Step 6: Final answer
    x = 87,903.65

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.