Home / 20,785.04-31,182.18-5,992.81

Finding the Fourth Proportional to 20,785.04, 31,182.18 and 5,992.81

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Solution

The fourth proportional to 20,785.04, 31,182.18 and 5,992.81 is: 8,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785.04 : 31,182.18 = 5,992.81 : x
  2. Step 2: Convert to fraction form
    20,785.04/31,182.18 = 5,992.81/x
  3. Step 3: Cross multiply
    20,785.04x = 31,182.18 × 5,992.81
  4. Step 4: Simplify right side
    20,785.04x = 186,868,694.25
  5. Step 5: Solve for x
    x = 186,868,694.25/20,785.04
  6. Step 6: Final answer
    x = 8,990.54

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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.