Home / 22,207.20-33,310.80-11,839.20

Finding the Fourth Proportional to 22,207.20, 33,310.80 and 11,839.20

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Solution

The fourth proportional to 22,207.20, 33,310.80 and 11,839.20 is: 17,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.20 : 33,310.80 = 11,839.20 : x
  2. Step 2: Convert to fraction form
    22,207.20/33,310.80 = 11,839.20/x
  3. Step 3: Cross multiply
    22,207.20x = 33,310.80 × 11,839.20
  4. Step 4: Simplify right side
    22,207.20x = 394,373,223.36
  5. Step 5: Solve for x
    x = 394,373,223.36/22,207.20
  6. Step 6: Final answer
    x = 17,758.80

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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.