Home / 22,215.60-33,280.20-12,337.20

Finding the Fourth Proportional to 22,215.60, 33,280.20 and 12,337.20

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Solution

The fourth proportional to 22,215.60, 33,280.20 and 12,337.20 is: 18,481.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,215.60 : 33,280.20 = 12,337.20 : x
  2. Step 2: Convert to fraction form
    22,215.60/33,280.20 = 12,337.20/x
  3. Step 3: Cross multiply
    22,215.60x = 33,280.20 × 12,337.20
  4. Step 4: Simplify right side
    22,215.60x = 410,584,483.44
  5. Step 5: Solve for x
    x = 410,584,483.44/22,215.60
  6. Step 6: Final answer
    x = 18,481.81

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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.