Home / 22,217.95-30,661.21-12,146.82

Finding the Fourth Proportional to 22,217.95, 30,661.21 and 12,146.82

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Solution

The fourth proportional to 22,217.95, 30,661.21 and 12,146.82 is: 16,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.95 : 30,661.21 = 12,146.82 : x
  2. Step 2: Convert to fraction form
    22,217.95/30,661.21 = 12,146.82/x
  3. Step 3: Cross multiply
    22,217.95x = 30,661.21 × 12,146.82
  4. Step 4: Simplify right side
    22,217.95x = 372,436,198.85
  5. Step 5: Solve for x
    x = 372,436,198.85/22,217.95
  6. Step 6: Final answer
    x = 16,762.85

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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.