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Finding the Third Proportional to 18,540.50 and 28,710.75

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Solution

The third proportional to 18,540.50 and 28,710.75 is: 44,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.50 : 28,710.75 = 28,710.75 : x
  2. Step 2: Convert to fraction form
    18,540.50/28,710.75 = 28,710.75/x
  3. Step 3: Cross multiply
    18,540.50x = 28,710.75 × 28,710.75
  4. Step 4: Simplify right side
    18,540.50x = 824,307,165.56
  5. Step 5: Solve for x
    x = 824,307,165.56/18,540.50
  6. Step 6: Final answer
    x = 44,459.81

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.