Home / 22,198.74-30,604.41-21,510.78

Finding the Fourth Proportional to 22,198.74, 30,604.41 and 21,510.78

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Solution

The fourth proportional to 22,198.74, 30,604.41 and 21,510.78 is: 29,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,198.74 : 30,604.41 = 21,510.78 : x
  2. Step 2: Convert to fraction form
    22,198.74/30,604.41 = 21,510.78/x
  3. Step 3: Cross multiply
    22,198.74x = 30,604.41 × 21,510.78
  4. Step 4: Simplify right side
    22,198.74x = 658,324,730.54
  5. Step 5: Solve for x
    x = 658,324,730.54/22,198.74
  6. Step 6: Final answer
    x = 29,655.95

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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.