Home / 20,151.76-27,794.34-12,183.79

Finding the Fourth Proportional to 20,151.76, 27,794.34 and 12,183.79

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Solution

The fourth proportional to 20,151.76, 27,794.34 and 12,183.79 is: 16,804.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.76 : 27,794.34 = 12,183.79 : x
  2. Step 2: Convert to fraction form
    20,151.76/27,794.34 = 12,183.79/x
  3. Step 3: Cross multiply
    20,151.76x = 27,794.34 × 12,183.79
  4. Step 4: Simplify right side
    20,151.76x = 338,640,401.75
  5. Step 5: Solve for x
    x = 338,640,401.75/20,151.76
  6. Step 6: Final answer
    x = 16,804.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.