Home / 21,195.48-29,251.17-12,243.36

Finding the Fourth Proportional to 21,195.48, 29,251.17 and 12,243.36

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Solution

The fourth proportional to 21,195.48, 29,251.17 and 12,243.36 is: 16,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.48 : 29,251.17 = 12,243.36 : x
  2. Step 2: Convert to fraction form
    21,195.48/29,251.17 = 12,243.36/x
  3. Step 3: Cross multiply
    21,195.48x = 29,251.17 × 12,243.36
  4. Step 4: Simplify right side
    21,195.48x = 358,132,604.73
  5. Step 5: Solve for x
    x = 358,132,604.73/21,195.48
  6. Step 6: Final answer
    x = 16,896.65

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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.