Home / 16,922.40-25,383.60-5,236.80

Finding the Fourth Proportional to 16,922.40, 25,383.60 and 5,236.80

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Solution

The fourth proportional to 16,922.40, 25,383.60 and 5,236.80 is: 7,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,922.40 : 25,383.60 = 5,236.80 : x
  2. Step 2: Convert to fraction form
    16,922.40/25,383.60 = 5,236.80/x
  3. Step 3: Cross multiply
    16,922.40x = 25,383.60 × 5,236.80
  4. Step 4: Simplify right side
    16,922.40x = 132,928,836.48
  5. Step 5: Solve for x
    x = 132,928,836.48/16,922.40
  6. Step 6: Final answer
    x = 7,855.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.