Home / 20,163.67-30,245.45-5,372.64

Finding the Fourth Proportional to 20,163.67, 30,245.45 and 5,372.64

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Solution

The fourth proportional to 20,163.67, 30,245.45 and 5,372.64 is: 8,058.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.67 : 30,245.45 = 5,372.64 : x
  2. Step 2: Convert to fraction form
    20,163.67/30,245.45 = 5,372.64/x
  3. Step 3: Cross multiply
    20,163.67x = 30,245.45 × 5,372.64
  4. Step 4: Simplify right side
    20,163.67x = 162,497,914.49
  5. Step 5: Solve for x
    x = 162,497,914.49/20,163.67
  6. Step 6: Final answer
    x = 8,058.95

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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.