Home / 20,183.92-27,849.60-12,226.72

Finding the Fourth Proportional to 20,183.92, 27,849.60 and 12,226.72

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Solution

The fourth proportional to 20,183.92, 27,849.60 and 12,226.72 is: 16,870.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.92 : 27,849.60 = 12,226.72 : x
  2. Step 2: Convert to fraction form
    20,183.92/27,849.60 = 12,226.72/x
  3. Step 3: Cross multiply
    20,183.92x = 27,849.60 × 12,226.72
  4. Step 4: Simplify right side
    20,183.92x = 340,509,261.31
  5. Step 5: Solve for x
    x = 340,509,261.31/20,183.92
  6. Step 6: Final answer
    x = 16,870.32

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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.