Home / 21,188.26-29,233.11-12,234.58

Finding the Fourth Proportional to 21,188.26, 29,233.11 and 12,234.58

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Solution

The fourth proportional to 21,188.26, 29,233.11 and 12,234.58 is: 16,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.26 : 29,233.11 = 12,234.58 : x
  2. Step 2: Convert to fraction form
    21,188.26/29,233.11 = 12,234.58/x
  3. Step 3: Cross multiply
    21,188.26x = 29,233.11 × 12,234.58
  4. Step 4: Simplify right side
    21,188.26x = 357,654,822.94
  5. Step 5: Solve for x
    x = 357,654,822.94/21,188.26
  6. Step 6: Final answer
    x = 16,879.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.