Home / 30,286.20-41,786.57-18,183.54

Finding the Fourth Proportional to 30,286.20, 41,786.57 and 18,183.54

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Solution

The fourth proportional to 30,286.20, 41,786.57 and 18,183.54 is: 25,088.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.20 : 41,786.57 = 18,183.54 : x
  2. Step 2: Convert to fraction form
    30,286.20/41,786.57 = 18,183.54/x
  3. Step 3: Cross multiply
    30,286.20x = 41,786.57 × 18,183.54
  4. Step 4: Simplify right side
    30,286.20x = 759,827,676.14
  5. Step 5: Solve for x
    x = 759,827,676.14/30,286.20
  6. Step 6: Final answer
    x = 25,088.25

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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.