Home / 20,408.86-30,613.29-13,481.74

Finding the Fourth Proportional to 20,408.86, 30,613.29 and 13,481.74

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Solution

The fourth proportional to 20,408.86, 30,613.29 and 13,481.74 is: 20,222.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.86 : 30,613.29 = 13,481.74 : x
  2. Step 2: Convert to fraction form
    20,408.86/30,613.29 = 13,481.74/x
  3. Step 3: Cross multiply
    20,408.86x = 30,613.29 × 13,481.74
  4. Step 4: Simplify right side
    20,408.86x = 412,720,416.32
  5. Step 5: Solve for x
    x = 412,720,416.32/20,408.86
  6. Step 6: Final answer
    x = 20,222.61

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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.