Home / 20,843.76-31,198.50-13,733.86

Finding the Fourth Proportional to 20,843.76, 31,198.50 and 13,733.86

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Solution

The fourth proportional to 20,843.76, 31,198.50 and 13,733.86 is: 20,556.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843.76 : 31,198.50 = 13,733.86 : x
  2. Step 2: Convert to fraction form
    20,843.76/31,198.50 = 13,733.86/x
  3. Step 3: Cross multiply
    20,843.76x = 31,198.50 × 13,733.86
  4. Step 4: Simplify right side
    20,843.76x = 428,475,831.21
  5. Step 5: Solve for x
    x = 428,475,831.21/20,843.76
  6. Step 6: Final answer
    x = 20,556.55

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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.