Home / 20,171.52-27,836.20-11,672.46

Finding the Fourth Proportional to 20,171.52, 27,836.20 and 11,672.46

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Solution

The fourth proportional to 20,171.52, 27,836.20 and 11,672.46 is: 16,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.52 : 27,836.20 = 11,672.46 : x
  2. Step 2: Convert to fraction form
    20,171.52/27,836.20 = 11,672.46/x
  3. Step 3: Cross multiply
    20,171.52x = 27,836.20 × 11,672.46
  4. Step 4: Simplify right side
    20,171.52x = 324,916,931.05
  5. Step 5: Solve for x
    x = 324,916,931.05/20,171.52
  6. Step 6: Final answer
    x = 16,107.71

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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.