Home / 20,013.67-30,031.17-11,249.20

Finding the Fourth Proportional to 20,013.67, 30,031.17 and 11,249.20

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Solution

The fourth proportional to 20,013.67, 30,031.17 and 11,249.20 is: 16,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.67 : 30,031.17 = 11,249.20 : x
  2. Step 2: Convert to fraction form
    20,013.67/30,031.17 = 11,249.20/x
  3. Step 3: Cross multiply
    20,013.67x = 30,031.17 × 11,249.20
  4. Step 4: Simplify right side
    20,013.67x = 337,826,637.56
  5. Step 5: Solve for x
    x = 337,826,637.56/20,013.67
  6. Step 6: Final answer
    x = 16,879.79

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1.5x scale

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.