Home / 20,562.80-30,843.99-5,771.66

Finding the Fourth Proportional to 20,562.80, 30,843.99 and 5,771.66

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Solution

The fourth proportional to 20,562.80, 30,843.99 and 5,771.66 is: 8,657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.80 : 30,843.99 = 5,771.66 : x
  2. Step 2: Convert to fraction form
    20,562.80/30,843.99 = 5,771.66/x
  3. Step 3: Cross multiply
    20,562.80x = 30,843.99 × 5,771.66
  4. Step 4: Simplify right side
    20,562.80x = 178,020,869.10
  5. Step 5: Solve for x
    x = 178,020,869.10/20,562.80
  6. Step 6: Final answer
    x = 8,657.43

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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.