Home / 21,209.26-31,817.99-8,060.61

Finding the Fourth Proportional to 21,209.26, 31,817.99 and 8,060.61

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Solution

The fourth proportional to 21,209.26, 31,817.99 and 8,060.61 is: 12,092.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209.26 : 31,817.99 = 8,060.61 : x
  2. Step 2: Convert to fraction form
    21,209.26/31,817.99 = 8,060.61/x
  3. Step 3: Cross multiply
    21,209.26x = 31,817.99 × 8,060.61
  4. Step 4: Simplify right side
    21,209.26x = 256,472,357.83
  5. Step 5: Solve for x
    x = 256,472,357.83/21,209.26
  6. Step 6: Final answer
    x = 12,092.47

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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.