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Finding the Fourth Proportional to 33,480.70, 50,221.05 and 8,520.70

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Solution

The fourth proportional to 33,480.70, 50,221.05 and 8,520.70 is: 12,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,480.70 : 50,221.05 = 8,520.70 : x
  2. Step 2: Convert to fraction form
    33,480.70/50,221.05 = 8,520.70/x
  3. Step 3: Cross multiply
    33,480.70x = 50,221.05 × 8,520.70
  4. Step 4: Simplify right side
    33,480.70x = 427,918,500.74
  5. Step 5: Solve for x
    x = 427,918,500.74/33,480.70
  6. Step 6: Final answer
    x = 12,781.05

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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.