Home / 20,141.51-27,797.83-12,183.72

Finding the Fourth Proportional to 20,141.51, 27,797.83 and 12,183.72

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Solution

The fourth proportional to 20,141.51, 27,797.83 and 12,183.72 is: 16,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.51 : 27,797.83 = 12,183.72 : x
  2. Step 2: Convert to fraction form
    20,141.51/27,797.83 = 12,183.72/x
  3. Step 3: Cross multiply
    20,141.51x = 27,797.83 × 12,183.72
  4. Step 4: Simplify right side
    20,141.51x = 338,680,911.16
  5. Step 5: Solve for x
    x = 338,680,911.16/20,141.51
  6. Step 6: Final answer
    x = 16,815.07

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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.