Home / 21,183.25-29,232.89-11,751.88

Finding the Fourth Proportional to 21,183.25, 29,232.89 and 11,751.88

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Solution

The fourth proportional to 21,183.25, 29,232.89 and 11,751.88 is: 16,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.25 : 29,232.89 = 11,751.88 : x
  2. Step 2: Convert to fraction form
    21,183.25/29,232.89 = 11,751.88/x
  3. Step 3: Cross multiply
    21,183.25x = 29,232.89 × 11,751.88
  4. Step 4: Simplify right side
    21,183.25x = 343,541,415.33
  5. Step 5: Solve for x
    x = 343,541,415.33/21,183.25
  6. Step 6: Final answer
    x = 16,217.60

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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.