Home / 21,472.44-29,629.98-12,039

Finding the Fourth Proportional to 21,472.44, 29,629.98 and 12,039

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Solution

The fourth proportional to 21,472.44, 29,629.98 and 12,039 is: 16,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.44 : 29,629.98 = 12,039 : x
  2. Step 2: Convert to fraction form
    21,472.44/29,629.98 = 12,039/x
  3. Step 3: Cross multiply
    21,472.44x = 29,629.98 × 12,039
  4. Step 4: Simplify right side
    21,472.44x = 356,715,329.22
  5. Step 5: Solve for x
    x = 356,715,329.22/21,472.44
  6. Step 6: Final answer
    x = 16,612.71

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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.