Home / 20,163.42-30,255.36-9,067.86

Finding the Fourth Proportional to 20,163.42, 30,255.36 and 9,067.86

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Solution

The fourth proportional to 20,163.42, 30,255.36 and 9,067.86 is: 13,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.42 : 30,255.36 = 9,067.86 : x
  2. Step 2: Convert to fraction form
    20,163.42/30,255.36 = 9,067.86/x
  3. Step 3: Cross multiply
    20,163.42x = 30,255.36 × 9,067.86
  4. Step 4: Simplify right side
    20,163.42x = 274,351,368.73
  5. Step 5: Solve for x
    x = 274,351,368.73/20,163.42
  6. Step 6: Final answer
    x = 13,606.39

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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.