Home / 21,717.52-32,572.85-8,388.54

Finding the Fourth Proportional to 21,717.52, 32,572.85 and 8,388.54

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Solution

The fourth proportional to 21,717.52, 32,572.85 and 8,388.54 is: 12,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,717.52 : 32,572.85 = 8,388.54 : x
  2. Step 2: Convert to fraction form
    21,717.52/32,572.85 = 8,388.54/x
  3. Step 3: Cross multiply
    21,717.52x = 32,572.85 × 8,388.54
  4. Step 4: Simplify right side
    21,717.52x = 273,238,613.20
  5. Step 5: Solve for x
    x = 273,238,613.20/21,717.52
  6. Step 6: Final answer
    x = 12,581.48

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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.