Home / 20,785.16-31,182.33-5,992.92

Finding the Fourth Proportional to 20,785.16, 31,182.33 and 5,992.92

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Solution

The fourth proportional to 20,785.16, 31,182.33 and 5,992.92 is: 8,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785.16 : 31,182.33 = 5,992.92 : x
  2. Step 2: Convert to fraction form
    20,785.16/31,182.33 = 5,992.92/x
  3. Step 3: Cross multiply
    20,785.16x = 31,182.33 × 5,992.92
  4. Step 4: Simplify right side
    20,785.16x = 186,873,209.10
  5. Step 5: Solve for x
    x = 186,873,209.10/20,785.16
  6. Step 6: Final answer
    x = 8,990.71

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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.