Home / 22,255.60-33,387.88-8,215.72

Finding the Fourth Proportional to 22,255.60, 33,387.88 and 8,215.72

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Solution

The fourth proportional to 22,255.60, 33,387.88 and 8,215.72 is: 12,325.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,255.60 : 33,387.88 = 8,215.72 : x
  2. Step 2: Convert to fraction form
    22,255.60/33,387.88 = 8,215.72/x
  3. Step 3: Cross multiply
    22,255.60x = 33,387.88 × 8,215.72
  4. Step 4: Simplify right side
    22,255.60x = 274,305,473.47
  5. Step 5: Solve for x
    x = 274,305,473.47/22,255.60
  6. Step 6: Final answer
    x = 12,325.23

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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.