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Finding the Fourth Proportional to 22,115.20, 33,124.20 and 19,199.20

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Solution

The fourth proportional to 22,115.20, 33,124.20 and 19,199.20 is: 28,756.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.20 : 33,124.20 = 19,199.20 : x
  2. Step 2: Convert to fraction form
    22,115.20/33,124.20 = 19,199.20/x
  3. Step 3: Cross multiply
    22,115.20x = 33,124.20 × 19,199.20
  4. Step 4: Simplify right side
    22,115.20x = 635,958,140.64
  5. Step 5: Solve for x
    x = 635,958,140.64/22,115.20
  6. Step 6: Final answer
    x = 28,756.61

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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.