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Finding the Third Proportional to 18,160.88 and 39,238.88

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Solution

The third proportional to 18,160.88 and 39,238.88 is: 84,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,160.88 : 39,238.88 = 39,238.88 : x
  2. Step 2: Convert to fraction form
    18,160.88/39,238.88 = 39,238.88/x
  3. Step 3: Cross multiply
    18,160.88x = 39,238.88 × 39,238.88
  4. Step 4: Simplify right side
    18,160.88x = 1,539,689,311.27
  5. Step 5: Solve for x
    x = 1,539,689,311.27/18,160.88
  6. Step 6: Final answer
    x = 84,780.57

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.