Home / 20,608.42-30,909.17-5,813.87

Finding the Fourth Proportional to 20,608.42, 30,909.17 and 5,813.87

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Solution

The fourth proportional to 20,608.42, 30,909.17 and 5,813.87 is: 8,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.42 : 30,909.17 = 5,813.87 : x
  2. Step 2: Convert to fraction form
    20,608.42/30,909.17 = 5,813.87/x
  3. Step 3: Cross multiply
    20,608.42x = 30,909.17 × 5,813.87
  4. Step 4: Simplify right side
    20,608.42x = 179,701,896.19
  5. Step 5: Solve for x
    x = 179,701,896.19/20,608.42
  6. Step 6: Final answer
    x = 8,719.83

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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.