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Finding the Fourth Proportional to 33,253.60, 49,855.60 and 20,103.20

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Solution

The fourth proportional to 33,253.60, 49,855.60 and 20,103.20 is: 30,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,253.60 : 49,855.60 = 20,103.20 : x
  2. Step 2: Convert to fraction form
    33,253.60/49,855.60 = 20,103.20/x
  3. Step 3: Cross multiply
    33,253.60x = 49,855.60 × 20,103.20
  4. Step 4: Simplify right side
    33,253.60x = 1,002,257,097.92
  5. Step 5: Solve for x
    x = 1,002,257,097.92/33,253.60
  6. Step 6: Final answer
    x = 30,139.81

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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.