Home / 22,206.15-30,644.31-12,134.61

Finding the Fourth Proportional to 22,206.15, 30,644.31 and 12,134.61

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Solution

The fourth proportional to 22,206.15, 30,644.31 and 12,134.61 is: 16,745.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,206.15 : 30,644.31 = 12,134.61 : x
  2. Step 2: Convert to fraction form
    22,206.15/30,644.31 = 12,134.61/x
  3. Step 3: Cross multiply
    22,206.15x = 30,644.31 × 12,134.61
  4. Step 4: Simplify right side
    22,206.15x = 371,856,750.57
  5. Step 5: Solve for x
    x = 371,856,750.57/22,206.15
  6. Step 6: Final answer
    x = 16,745.67

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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.