Home / 20,785.29-31,169.85-6,741.92

Finding the Fourth Proportional to 20,785.29, 31,169.85 and 6,741.92

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Solution

The fourth proportional to 20,785.29, 31,169.85 and 6,741.92 is: 10,110.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785.29 : 31,169.85 = 6,741.92 : x
  2. Step 2: Convert to fraction form
    20,785.29/31,169.85 = 6,741.92/x
  3. Step 3: Cross multiply
    20,785.29x = 31,169.85 × 6,741.92
  4. Step 4: Simplify right side
    20,785.29x = 210,144,651.03
  5. Step 5: Solve for x
    x = 210,144,651.03/20,785.29
  6. Step 6: Final answer
    x = 10,110.26

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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.