Home / 20,238.52-30,329.68-11,923.96

Finding the Fourth Proportional to 20,238.52, 30,329.68 and 11,923.96

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Solution

The fourth proportional to 20,238.52, 30,329.68 and 11,923.96 is: 17,869.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.52 : 30,329.68 = 11,923.96 : x
  2. Step 2: Convert to fraction form
    20,238.52/30,329.68 = 11,923.96/x
  3. Step 3: Cross multiply
    20,238.52x = 30,329.68 × 11,923.96
  4. Step 4: Simplify right side
    20,238.52x = 361,649,891.13
  5. Step 5: Solve for x
    x = 361,649,891.13/20,238.52
  6. Step 6: Final answer
    x = 17,869.38

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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.