Home / 20,799.94-31,167.10-11,425.92

Finding the Fourth Proportional to 20,799.94, 31,167.10 and 11,425.92

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Solution

The fourth proportional to 20,799.94, 31,167.10 and 11,425.92 is: 17,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799.94 : 31,167.10 = 11,425.92 : x
  2. Step 2: Convert to fraction form
    20,799.94/31,167.10 = 11,425.92/x
  3. Step 3: Cross multiply
    20,799.94x = 31,167.10 × 11,425.92
  4. Step 4: Simplify right side
    20,799.94x = 356,112,791.23
  5. Step 5: Solve for x
    x = 356,112,791.23/20,799.94
  6. Step 6: Final answer
    x = 17,120.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.