Home / 20,986.20-31,479.57-6,195.33

Finding the Fourth Proportional to 20,986.20, 31,479.57 and 6,195.33

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Solution

The fourth proportional to 20,986.20, 31,479.57 and 6,195.33 is: 9,293.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986.20 : 31,479.57 = 6,195.33 : x
  2. Step 2: Convert to fraction form
    20,986.20/31,479.57 = 6,195.33/x
  3. Step 3: Cross multiply
    20,986.20x = 31,479.57 × 6,195.33
  4. Step 4: Simplify right side
    20,986.20x = 195,026,324.41
  5. Step 5: Solve for x
    x = 195,026,324.41/20,986.20
  6. Step 6: Final answer
    x = 9,293.07

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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.