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Finding the Fourth Proportional to 22,134.40, 33,105.60 and 19,811.20

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Solution

The fourth proportional to 22,134.40, 33,105.60 and 19,811.20 is: 29,630.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,134.40 : 33,105.60 = 19,811.20 : x
  2. Step 2: Convert to fraction form
    22,134.40/33,105.60 = 19,811.20/x
  3. Step 3: Cross multiply
    22,134.40x = 33,105.60 × 19,811.20
  4. Step 4: Simplify right side
    22,134.40x = 655,861,662.72
  5. Step 5: Solve for x
    x = 655,861,662.72/22,134.40
  6. Step 6: Final answer
    x = 29,630.88

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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.