Home / 28,868.92-39,836.83-16,121.10

Finding the Fourth Proportional to 28,868.92, 39,836.83 and 16,121.10

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Solution

The fourth proportional to 28,868.92, 39,836.83 and 16,121.10 is: 22,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,868.92 : 39,836.83 = 16,121.10 : x
  2. Step 2: Convert to fraction form
    28,868.92/39,836.83 = 16,121.10/x
  3. Step 3: Cross multiply
    28,868.92x = 39,836.83 × 16,121.10
  4. Step 4: Simplify right side
    28,868.92x = 642,213,520.11
  5. Step 5: Solve for x
    x = 642,213,520.11/28,868.92
  6. Step 6: Final answer
    x = 22,245.85

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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.