Home / 21,517.92-32,283.36-7,668

Finding the Fourth Proportional to 21,517.92, 32,283.36 and 7,668

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Solution

The fourth proportional to 21,517.92, 32,283.36 and 7,668 is: 11,504.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,517.92 : 32,283.36 = 7,668 : x
  2. Step 2: Convert to fraction form
    21,517.92/32,283.36 = 7,668/x
  3. Step 3: Cross multiply
    21,517.92x = 32,283.36 × 7,668
  4. Step 4: Simplify right side
    21,517.92x = 247,548,804.48
  5. Step 5: Solve for x
    x = 247,548,804.48/21,517.92
  6. Step 6: Final answer
    x = 11,504.31

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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.