Home / 21,908.20-32,861.84-6,112.82

Finding the Fourth Proportional to 21,908.20, 32,861.84 and 6,112.82

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Solution

The fourth proportional to 21,908.20, 32,861.84 and 6,112.82 is: 9,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,908.20 : 32,861.84 = 6,112.82 : x
  2. Step 2: Convert to fraction form
    21,908.20/32,861.84 = 6,112.82/x
  3. Step 3: Cross multiply
    21,908.20x = 32,861.84 × 6,112.82
  4. Step 4: Simplify right side
    21,908.20x = 200,878,512.79
  5. Step 5: Solve for x
    x = 200,878,512.79/21,908.20
  6. Step 6: Final answer
    x = 9,169.10

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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.