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Finding the Third Proportional to 13,500 and 20,199.38

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Solution

The third proportional to 13,500 and 20,199.38 is: 30,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500 : 20,199.38 = 20,199.38 : x
  2. Step 2: Convert to fraction form
    13,500/20,199.38 = 20,199.38/x
  3. Step 3: Cross multiply
    13,500x = 20,199.38 × 20,199.38
  4. Step 4: Simplify right side
    13,500x = 408,014,750.39
  5. Step 5: Solve for x
    x = 408,014,750.39/13,500
  6. Step 6: Final answer
    x = 30,223.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.