Home / 20,249.62-30,335.55-11,458.42

Finding the Fourth Proportional to 20,249.62, 30,335.55 and 11,458.42

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Solution

The fourth proportional to 20,249.62, 30,335.55 and 11,458.42 is: 17,165.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.62 : 30,335.55 = 11,458.42 : x
  2. Step 2: Convert to fraction form
    20,249.62/30,335.55 = 11,458.42/x
  3. Step 3: Cross multiply
    20,249.62x = 30,335.55 × 11,458.42
  4. Step 4: Simplify right side
    20,249.62x = 347,597,472.83
  5. Step 5: Solve for x
    x = 347,597,472.83/20,249.62
  6. Step 6: Final answer
    x = 17,165.63

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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.