Home / 20,379.33-30,568.96-5,589.41

Finding the Fourth Proportional to 20,379.33, 30,568.96 and 5,589.41

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Solution

The fourth proportional to 20,379.33, 30,568.96 and 5,589.41 is: 8,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,379.33 : 30,568.96 = 5,589.41 : x
  2. Step 2: Convert to fraction form
    20,379.33/30,568.96 = 5,589.41/x
  3. Step 3: Cross multiply
    20,379.33x = 30,568.96 × 5,589.41
  4. Step 4: Simplify right side
    20,379.33x = 170,862,304.86
  5. Step 5: Solve for x
    x = 170,862,304.86/20,379.33
  6. Step 6: Final answer
    x = 8,384.10

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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.