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Finding the Fourth Proportional to 21,596.88, 32,388 and 8,453.04

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Solution

The fourth proportional to 21,596.88, 32,388 and 8,453.04 is: 12,676.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,596.88 : 32,388 = 8,453.04 : x
  2. Step 2: Convert to fraction form
    21,596.88/32,388 = 8,453.04/x
  3. Step 3: Cross multiply
    21,596.88x = 32,388 × 8,453.04
  4. Step 4: Simplify right side
    21,596.88x = 273,777,059.52
  5. Step 5: Solve for x
    x = 273,777,059.52/21,596.88
  6. Step 6: Final answer
    x = 12,676.69

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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.