Home / 33,778.71-50,660.34-12,720.96

Finding the Fourth Proportional to 33,778.71, 50,660.34 and 12,720.96

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Solution

The fourth proportional to 33,778.71, 50,660.34 and 12,720.96 is: 19,078.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,778.71 : 50,660.34 = 12,720.96 : x
  2. Step 2: Convert to fraction form
    33,778.71/50,660.34 = 12,720.96/x
  3. Step 3: Cross multiply
    33,778.71x = 50,660.34 × 12,720.96
  4. Step 4: Simplify right side
    33,778.71x = 644,448,158.73
  5. Step 5: Solve for x
    x = 644,448,158.73/33,778.71
  6. Step 6: Final answer
    x = 19,078.53

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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.