Home / 20,379.21-30,568.68-6,339.24

Finding the Fourth Proportional to 20,379.21, 30,568.68 and 6,339.24

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Solution

The fourth proportional to 20,379.21, 30,568.68 and 6,339.24 is: 9,508.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,379.21 : 30,568.68 = 6,339.24 : x
  2. Step 2: Convert to fraction form
    20,379.21/30,568.68 = 6,339.24/x
  3. Step 3: Cross multiply
    20,379.21x = 30,568.68 × 6,339.24
  4. Step 4: Simplify right side
    20,379.21x = 193,782,297.56
  5. Step 5: Solve for x
    x = 193,782,297.56/20,379.21
  6. Step 6: Final answer
    x = 9,508.82

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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.