Home / 20,086.26-27,719.76-12,126.94

Finding the Fourth Proportional to 20,086.26, 27,719.76 and 12,126.94

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Solution

The fourth proportional to 20,086.26, 27,719.76 and 12,126.94 is: 16,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.26 : 27,719.76 = 12,126.94 : x
  2. Step 2: Convert to fraction form
    20,086.26/27,719.76 = 12,126.94/x
  3. Step 3: Cross multiply
    20,086.26x = 27,719.76 × 12,126.94
  4. Step 4: Simplify right side
    20,086.26x = 336,155,866.33
  5. Step 5: Solve for x
    x = 336,155,866.33/20,086.26
  6. Step 6: Final answer
    x = 16,735.61

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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.