Home / 18,502.70-27,757.69-5,355.18

Finding the Fourth Proportional to 18,502.70, 27,757.69 and 5,355.18

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Solution

The fourth proportional to 18,502.70, 27,757.69 and 5,355.18 is: 8,033.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.70 : 27,757.69 = 5,355.18 : x
  2. Step 2: Convert to fraction form
    18,502.70/27,757.69 = 5,355.18/x
  3. Step 3: Cross multiply
    18,502.70x = 27,757.69 × 5,355.18
  4. Step 4: Simplify right side
    18,502.70x = 148,647,412.95
  5. Step 5: Solve for x
    x = 148,647,412.95/18,502.70
  6. Step 6: Final answer
    x = 8,033.82

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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.