Home / 20,183.48-27,852.36-11,231.36

Finding the Fourth Proportional to 20,183.48, 27,852.36 and 11,231.36

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Solution

The fourth proportional to 20,183.48, 27,852.36 and 11,231.36 is: 15,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.48 : 27,852.36 = 11,231.36 : x
  2. Step 2: Convert to fraction form
    20,183.48/27,852.36 = 11,231.36/x
  3. Step 3: Cross multiply
    20,183.48x = 27,852.36 × 11,231.36
  4. Step 4: Simplify right side
    20,183.48x = 312,819,882.01
  5. Step 5: Solve for x
    x = 312,819,882.01/20,183.48
  6. Step 6: Final answer
    x = 15,498.81

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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.