Home / 20,568.22-30,809.27-13,134.85

Finding the Fourth Proportional to 20,568.22, 30,809.27 and 13,134.85

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Solution

The fourth proportional to 20,568.22, 30,809.27 and 13,134.85 is: 19,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.22 : 30,809.27 = 13,134.85 : x
  2. Step 2: Convert to fraction form
    20,568.22/30,809.27 = 13,134.85/x
  3. Step 3: Cross multiply
    20,568.22x = 30,809.27 × 13,134.85
  4. Step 4: Simplify right side
    20,568.22x = 404,675,140.06
  5. Step 5: Solve for x
    x = 404,675,140.06/20,568.22
  6. Step 6: Final answer
    x = 19,674.78

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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.