Home / 20,838.33-31,246.87-6,789.33

Finding the Fourth Proportional to 20,838.33, 31,246.87 and 6,789.33

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Solution

The fourth proportional to 20,838.33, 31,246.87 and 6,789.33 is: 10,180.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.33 : 31,246.87 = 6,789.33 : x
  2. Step 2: Convert to fraction form
    20,838.33/31,246.87 = 6,789.33/x
  3. Step 3: Cross multiply
    20,838.33x = 31,246.87 × 6,789.33
  4. Step 4: Simplify right side
    20,838.33x = 212,145,311.90
  5. Step 5: Solve for x
    x = 212,145,311.90/20,838.33
  6. Step 6: Final answer
    x = 10,180.53

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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.