Home / 20,894.37-28,834.83-11,942.25

Finding the Fourth Proportional to 20,894.37, 28,834.83 and 11,942.25

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Solution

The fourth proportional to 20,894.37, 28,834.83 and 11,942.25 is: 16,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,894.37 : 28,834.83 = 11,942.25 : x
  2. Step 2: Convert to fraction form
    20,894.37/28,834.83 = 11,942.25/x
  3. Step 3: Cross multiply
    20,894.37x = 28,834.83 × 11,942.25
  4. Step 4: Simplify right side
    20,894.37x = 344,352,748.57
  5. Step 5: Solve for x
    x = 344,352,748.57/20,894.37
  6. Step 6: Final answer
    x = 16,480.65

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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.