Home / 21,049.28-29,048.18-11,489.24

Finding the Fourth Proportional to 21,049.28, 29,048.18 and 11,489.24

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Solution

The fourth proportional to 21,049.28, 29,048.18 and 11,489.24 is: 15,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.28 : 29,048.18 = 11,489.24 : x
  2. Step 2: Convert to fraction form
    21,049.28/29,048.18 = 11,489.24/x
  3. Step 3: Cross multiply
    21,049.28x = 29,048.18 × 11,489.24
  4. Step 4: Simplify right side
    21,049.28x = 333,741,511.58
  5. Step 5: Solve for x
    x = 333,741,511.58/21,049.28
  6. Step 6: Final answer
    x = 15,855.25

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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.