Home / 15,680.22-23,519.67-3,993.72

Finding the Fourth Proportional to 15,680.22, 23,519.67 and 3,993.72

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Solution

The fourth proportional to 15,680.22, 23,519.67 and 3,993.72 is: 5,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,680.22 : 23,519.67 = 3,993.72 : x
  2. Step 2: Convert to fraction form
    15,680.22/23,519.67 = 3,993.72/x
  3. Step 3: Cross multiply
    15,680.22x = 23,519.67 × 3,993.72
  4. Step 4: Simplify right side
    15,680.22x = 93,930,976.47
  5. Step 5: Solve for x
    x = 93,930,976.47/15,680.22
  6. Step 6: Final answer
    x = 5,990.41

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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.