Home / 20,785.27-31,169.86-6,741.92

Finding the Fourth Proportional to 20,785.27, 31,169.86 and 6,741.92

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Solution

The fourth proportional to 20,785.27, 31,169.86 and 6,741.92 is: 10,110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785.27 : 31,169.86 = 6,741.92 : x
  2. Step 2: Convert to fraction form
    20,785.27/31,169.86 = 6,741.92/x
  3. Step 3: Cross multiply
    20,785.27x = 31,169.86 × 6,741.92
  4. Step 4: Simplify right side
    20,785.27x = 210,144,715.03
  5. Step 5: Solve for x
    x = 210,144,715.03/20,785.27
  6. Step 6: Final answer
    x = 10,110.27

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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.