Home / 20,163.49-30,245.20-5,372.41

Finding the Fourth Proportional to 20,163.49, 30,245.20 and 5,372.41

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Solution

The fourth proportional to 20,163.49, 30,245.20 and 5,372.41 is: 8,058.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.49 : 30,245.20 = 5,372.41 : x
  2. Step 2: Convert to fraction form
    20,163.49/30,245.20 = 5,372.41/x
  3. Step 3: Cross multiply
    20,163.49x = 30,245.20 × 5,372.41
  4. Step 4: Simplify right side
    20,163.49x = 162,489,614.93
  5. Step 5: Solve for x
    x = 162,489,614.93/20,163.49
  6. Step 6: Final answer
    x = 8,058.61

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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.