Home / 22,138.20-33,226.74-12,288.60

Finding the Fourth Proportional to 22,138.20, 33,226.74 and 12,288.60

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Solution

The fourth proportional to 22,138.20, 33,226.74 and 12,288.60 is: 18,443.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,138.20 : 33,226.74 = 12,288.60 : x
  2. Step 2: Convert to fraction form
    22,138.20/33,226.74 = 12,288.60/x
  3. Step 3: Cross multiply
    22,138.20x = 33,226.74 × 12,288.60
  4. Step 4: Simplify right side
    22,138.20x = 408,310,117.16
  5. Step 5: Solve for x
    x = 408,310,117.16/22,138.20
  6. Step 6: Final answer
    x = 18,443.69

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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.