Home / 20,387.46-30,572.99-6,342.83

Finding the Fourth Proportional to 20,387.46, 30,572.99 and 6,342.83

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Solution

The fourth proportional to 20,387.46, 30,572.99 and 6,342.83 is: 9,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,387.46 : 30,572.99 = 6,342.83 : x
  2. Step 2: Convert to fraction form
    20,387.46/30,572.99 = 6,342.83/x
  3. Step 3: Cross multiply
    20,387.46x = 30,572.99 × 6,342.83
  4. Step 4: Simplify right side
    20,387.46x = 193,919,278.16
  5. Step 5: Solve for x
    x = 193,919,278.16/20,387.46
  6. Step 6: Final answer
    x = 9,511.69

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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.