Home / 22,141.20-33,231.24-12,291.60

Finding the Fourth Proportional to 22,141.20, 33,231.24 and 12,291.60

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Solution

The fourth proportional to 22,141.20, 33,231.24 and 12,291.60 is: 18,448.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,141.20 : 33,231.24 = 12,291.60 : x
  2. Step 2: Convert to fraction form
    22,141.20/33,231.24 = 12,291.60/x
  3. Step 3: Cross multiply
    22,141.20x = 33,231.24 × 12,291.60
  4. Step 4: Simplify right side
    22,141.20x = 408,465,109.58
  5. Step 5: Solve for x
    x = 408,465,109.58/22,141.20
  6. Step 6: Final answer
    x = 18,448.19

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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.