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Finding the Fourth Proportional to 33,599.70, 50,399.54 and 8,639.78

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Solution

The fourth proportional to 33,599.70, 50,399.54 and 8,639.78 is: 12,959.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,599.70 : 50,399.54 = 8,639.78 : x
  2. Step 2: Convert to fraction form
    33,599.70/50,399.54 = 8,639.78/x
  3. Step 3: Cross multiply
    33,599.70x = 50,399.54 × 8,639.78
  4. Step 4: Simplify right side
    33,599.70x = 435,440,642.50
  5. Step 5: Solve for x
    x = 435,440,642.50/33,599.70
  6. Step 6: Final answer
    x = 12,959.66

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Similar ratio
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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.