Home / 20,272.43-30,412.53-6,229.96

Finding the Fourth Proportional to 20,272.43, 30,412.53 and 6,229.96

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Solution

The fourth proportional to 20,272.43, 30,412.53 and 6,229.96 is: 9,346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.43 : 30,412.53 = 6,229.96 : x
  2. Step 2: Convert to fraction form
    20,272.43/30,412.53 = 6,229.96/x
  3. Step 3: Cross multiply
    20,272.43x = 30,412.53 × 6,229.96
  4. Step 4: Simplify right side
    20,272.43x = 189,468,769.37
  5. Step 5: Solve for x
    x = 189,468,769.37/20,272.43
  6. Step 6: Final answer
    x = 9,346.13

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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.