Home / 21,539.62-32,303.15-8,388.86

Finding the Fourth Proportional to 21,539.62, 32,303.15 and 8,388.86

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Solution

The fourth proportional to 21,539.62, 32,303.15 and 8,388.86 is: 12,580.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,539.62 : 32,303.15 = 8,388.86 : x
  2. Step 2: Convert to fraction form
    21,539.62/32,303.15 = 8,388.86/x
  3. Step 3: Cross multiply
    21,539.62x = 32,303.15 × 8,388.86
  4. Step 4: Simplify right side
    21,539.62x = 270,986,560.96
  5. Step 5: Solve for x
    x = 270,986,560.96/21,539.62
  6. Step 6: Final answer
    x = 12,580.85

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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.