Home / 20,135.62-27,787.52-11,183.97

Finding the Fourth Proportional to 20,135.62, 27,787.52 and 11,183.97

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Solution

The fourth proportional to 20,135.62, 27,787.52 and 11,183.97 is: 15,434.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.62 : 27,787.52 = 11,183.97 : x
  2. Step 2: Convert to fraction form
    20,135.62/27,787.52 = 11,183.97/x
  3. Step 3: Cross multiply
    20,135.62x = 27,787.52 × 11,183.97
  4. Step 4: Simplify right side
    20,135.62x = 310,774,922.22
  5. Step 5: Solve for x
    x = 310,774,922.22/20,135.62
  6. Step 6: Final answer
    x = 15,434.09

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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.