Home / 21,575.88-32,367.24-7,539.78

Finding the Fourth Proportional to 21,575.88, 32,367.24 and 7,539.78

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Solution

The fourth proportional to 21,575.88, 32,367.24 and 7,539.78 is: 11,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.88 : 32,367.24 = 7,539.78 : x
  2. Step 2: Convert to fraction form
    21,575.88/32,367.24 = 7,539.78/x
  3. Step 3: Cross multiply
    21,575.88x = 32,367.24 × 7,539.78
  4. Step 4: Simplify right side
    21,575.88x = 244,041,868.81
  5. Step 5: Solve for x
    x = 244,041,868.81/21,575.88
  6. Step 6: Final answer
    x = 11,310.87

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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.