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Finding the Third Proportional to 11,539.75 and 18,079.25

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Solution

The third proportional to 11,539.75 and 18,079.25 is: 28,324.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,539.75 : 18,079.25 = 18,079.25 : x
  2. Step 2: Convert to fraction form
    11,539.75/18,079.25 = 18,079.25/x
  3. Step 3: Cross multiply
    11,539.75x = 18,079.25 × 18,079.25
  4. Step 4: Simplify right side
    11,539.75x = 326,859,280.56
  5. Step 5: Solve for x
    x = 326,859,280.56/11,539.75
  6. Step 6: Final answer
    x = 28,324.64

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.