Home / 20,134.60-27,787.96-11,521.57

Finding the Fourth Proportional to 20,134.60, 27,787.96 and 11,521.57

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Solution

The fourth proportional to 20,134.60, 27,787.96 and 11,521.57 is: 15,901.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.60 : 27,787.96 = 11,521.57 : x
  2. Step 2: Convert to fraction form
    20,134.60/27,787.96 = 11,521.57/x
  3. Step 3: Cross multiply
    20,134.60x = 27,787.96 × 11,521.57
  4. Step 4: Simplify right side
    20,134.60x = 320,160,787.36
  5. Step 5: Solve for x
    x = 320,160,787.36/20,134.60
  6. Step 6: Final answer
    x = 15,901.03

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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.