Home / 21,550.62-32,319.64-8,399.86

Finding the Fourth Proportional to 21,550.62, 32,319.64 and 8,399.86

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Solution

The fourth proportional to 21,550.62, 32,319.64 and 8,399.86 is: 12,597.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.62 : 32,319.64 = 8,399.86 : x
  2. Step 2: Convert to fraction form
    21,550.62/32,319.64 = 8,399.86/x
  3. Step 3: Cross multiply
    21,550.62x = 32,319.64 × 8,399.86
  4. Step 4: Simplify right side
    21,550.62x = 271,480,451.25
  5. Step 5: Solve for x
    x = 271,480,451.25/21,550.62
  6. Step 6: Final answer
    x = 12,597.34

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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.