Home / 20,135.24-27,787.52-11,182.76

Finding the Fourth Proportional to 20,135.24, 27,787.52 and 11,182.76

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Solution

The fourth proportional to 20,135.24, 27,787.52 and 11,182.76 is: 15,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.24 : 27,787.52 = 11,182.76 : x
  2. Step 2: Convert to fraction form
    20,135.24/27,787.52 = 11,182.76/x
  3. Step 3: Cross multiply
    20,135.24x = 27,787.52 × 11,182.76
  4. Step 4: Simplify right side
    20,135.24x = 310,741,167.16
  5. Step 5: Solve for x
    x = 310,741,167.16/20,135.24
  6. Step 6: Final answer
    x = 15,432.70

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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.