Home / 21,269.50-29,351.91-11,838.07

Finding the Fourth Proportional to 21,269.50, 29,351.91 and 11,838.07

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Solution

The fourth proportional to 21,269.50, 29,351.91 and 11,838.07 is: 16,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.50 : 29,351.91 = 11,838.07 : x
  2. Step 2: Convert to fraction form
    21,269.50/29,351.91 = 11,838.07/x
  3. Step 3: Cross multiply
    21,269.50x = 29,351.91 × 11,838.07
  4. Step 4: Simplify right side
    21,269.50x = 347,469,965.21
  5. Step 5: Solve for x
    x = 347,469,965.21/21,269.50
  6. Step 6: Final answer
    x = 16,336.54

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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.