Home / 22,272.20-33,400.20-8,939.60

Finding the Fourth Proportional to 22,272.20, 33,400.20 and 8,939.60

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Solution

The fourth proportional to 22,272.20, 33,400.20 and 8,939.60 is: 13,406.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.20 : 33,400.20 = 8,939.60 : x
  2. Step 2: Convert to fraction form
    22,272.20/33,400.20 = 8,939.60/x
  3. Step 3: Cross multiply
    22,272.20x = 33,400.20 × 8,939.60
  4. Step 4: Simplify right side
    22,272.20x = 298,584,427.92
  5. Step 5: Solve for x
    x = 298,584,427.92/22,272.20
  6. Step 6: Final answer
    x = 13,406.15

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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.