Home / 33,180.77-49,778.53-12,120.77

Finding the Fourth Proportional to 33,180.77, 49,778.53 and 12,120.77

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Solution

The fourth proportional to 33,180.77, 49,778.53 and 12,120.77 is: 18,183.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,180.77 : 49,778.53 = 12,120.77 : x
  2. Step 2: Convert to fraction form
    33,180.77/49,778.53 = 12,120.77/x
  3. Step 3: Cross multiply
    33,180.77x = 49,778.53 × 12,120.77
  4. Step 4: Simplify right side
    33,180.77x = 603,353,833.87
  5. Step 5: Solve for x
    x = 603,353,833.87/33,180.77
  6. Step 6: Final answer
    x = 18,183.84

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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.