Home / 21,540.92-32,312.92-5,745.87

Finding the Fourth Proportional to 21,540.92, 32,312.92 and 5,745.87

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Solution

The fourth proportional to 21,540.92, 32,312.92 and 5,745.87 is: 8,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.92 : 32,312.92 = 5,745.87 : x
  2. Step 2: Convert to fraction form
    21,540.92/32,312.92 = 5,745.87/x
  3. Step 3: Cross multiply
    21,540.92x = 32,312.92 × 5,745.87
  4. Step 4: Simplify right side
    21,540.92x = 185,665,837.64
  5. Step 5: Solve for x
    x = 185,665,837.64/21,540.92
  6. Step 6: Final answer
    x = 8,619.22

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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.