Home / 21,301.22-31,951.64-5,504.90

Finding the Fourth Proportional to 21,301.22, 31,951.64 and 5,504.90

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Solution

The fourth proportional to 21,301.22, 31,951.64 and 5,504.90 is: 8,257.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.22 : 31,951.64 = 5,504.90 : x
  2. Step 2: Convert to fraction form
    21,301.22/31,951.64 = 5,504.90/x
  3. Step 3: Cross multiply
    21,301.22x = 31,951.64 × 5,504.90
  4. Step 4: Simplify right side
    21,301.22x = 175,890,395.75
  5. Step 5: Solve for x
    x = 175,890,395.75/21,301.22
  6. Step 6: Final answer
    x = 8,257.29

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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.