Home / 21,398.52-32,103.35-8,246.55

Finding the Fourth Proportional to 21,398.52, 32,103.35 and 8,246.55

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Solution

The fourth proportional to 21,398.52, 32,103.35 and 8,246.55 is: 12,371.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398.52 : 32,103.35 = 8,246.55 : x
  2. Step 2: Convert to fraction form
    21,398.52/32,103.35 = 8,246.55/x
  3. Step 3: Cross multiply
    21,398.52x = 32,103.35 × 8,246.55
  4. Step 4: Simplify right side
    21,398.52x = 264,741,901.56
  5. Step 5: Solve for x
    x = 264,741,901.56/21,398.52
  6. Step 6: Final answer
    x = 12,371.97

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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.