Home / 20,163.78-30,227.22-8,477.82

Finding the Fourth Proportional to 20,163.78, 30,227.22 and 8,477.82

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Solution

The fourth proportional to 20,163.78, 30,227.22 and 8,477.82 is: 12,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.78 : 30,227.22 = 8,477.82 : x
  2. Step 2: Convert to fraction form
    20,163.78/30,227.22 = 8,477.82/x
  3. Step 3: Cross multiply
    20,163.78x = 30,227.22 × 8,477.82
  4. Step 4: Simplify right side
    20,163.78x = 256,260,930.26
  5. Step 5: Solve for x
    x = 256,260,930.26/20,163.78
  6. Step 6: Final answer
    x = 12,708.97

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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.