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Finding the Third Proportional to 15,133.50 and 20,199.38

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Solution

The third proportional to 15,133.50 and 20,199.38 is: 26,961.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133.50 : 20,199.38 = 20,199.38 : x
  2. Step 2: Convert to fraction form
    15,133.50/20,199.38 = 20,199.38/x
  3. Step 3: Cross multiply
    15,133.50x = 20,199.38 × 20,199.38
  4. Step 4: Simplify right side
    15,133.50x = 408,014,750.39
  5. Step 5: Solve for x
    x = 408,014,750.39/15,133.50
  6. Step 6: Final answer
    x = 26,961.03

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.