Home / 20,691.70-31,042.38-5,900.82

Finding the Fourth Proportional to 20,691.70, 31,042.38 and 5,900.82

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Solution

The fourth proportional to 20,691.70, 31,042.38 and 5,900.82 is: 8,852.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691.70 : 31,042.38 = 5,900.82 : x
  2. Step 2: Convert to fraction form
    20,691.70/31,042.38 = 5,900.82/x
  3. Step 3: Cross multiply
    20,691.70x = 31,042.38 × 5,900.82
  4. Step 4: Simplify right side
    20,691.70x = 183,175,496.75
  5. Step 5: Solve for x
    x = 183,175,496.75/20,691.70
  6. Step 6: Final answer
    x = 8,852.61

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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.