Home / 20,288.71-30,435.96-6,249.88

Finding the Fourth Proportional to 20,288.71, 30,435.96 and 6,249.88

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Solution

The fourth proportional to 20,288.71, 30,435.96 and 6,249.88 is: 9,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288.71 : 30,435.96 = 6,249.88 : x
  2. Step 2: Convert to fraction form
    20,288.71/30,435.96 = 6,249.88/x
  3. Step 3: Cross multiply
    20,288.71x = 30,435.96 × 6,249.88
  4. Step 4: Simplify right side
    20,288.71x = 190,221,097.68
  5. Step 5: Solve for x
    x = 190,221,097.68/20,288.71
  6. Step 6: Final answer
    x = 9,375.71

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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.