Home / 20,759.44-31,137.88-6,719.16

Finding the Fourth Proportional to 20,759.44, 31,137.88 and 6,719.16

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Solution

The fourth proportional to 20,759.44, 31,137.88 and 6,719.16 is: 10,078.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.44 : 31,137.88 = 6,719.16 : x
  2. Step 2: Convert to fraction form
    20,759.44/31,137.88 = 6,719.16/x
  3. Step 3: Cross multiply
    20,759.44x = 31,137.88 × 6,719.16
  4. Step 4: Simplify right side
    20,759.44x = 209,220,397.78
  5. Step 5: Solve for x
    x = 209,220,397.78/20,759.44
  6. Step 6: Final answer
    x = 10,078.33

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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.