Home / 20,408.26-30,613.06-5,617.12

Finding the Fourth Proportional to 20,408.26, 30,613.06 and 5,617.12

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Solution

The fourth proportional to 20,408.26, 30,613.06 and 5,617.12 is: 8,425.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.26 : 30,613.06 = 5,617.12 : x
  2. Step 2: Convert to fraction form
    20,408.26/30,613.06 = 5,617.12/x
  3. Step 3: Cross multiply
    20,408.26x = 30,613.06 × 5,617.12
  4. Step 4: Simplify right side
    20,408.26x = 171,957,231.59
  5. Step 5: Solve for x
    x = 171,957,231.59/20,408.26
  6. Step 6: Final answer
    x = 8,425.86

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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.