Home / 21,229.34-29,296.85-11,797.92

Finding the Fourth Proportional to 21,229.34, 29,296.85 and 11,797.92

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Solution

The fourth proportional to 21,229.34, 29,296.85 and 11,797.92 is: 16,281.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.34 : 29,296.85 = 11,797.92 : x
  2. Step 2: Convert to fraction form
    21,229.34/29,296.85 = 11,797.92/x
  3. Step 3: Cross multiply
    21,229.34x = 29,296.85 × 11,797.92
  4. Step 4: Simplify right side
    21,229.34x = 345,641,833.56
  5. Step 5: Solve for x
    x = 345,641,833.56/21,229.34
  6. Step 6: Final answer
    x = 16,281.33

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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.