Home / 20,183.92-27,857.66-13,365.92

Finding the Fourth Proportional to 20,183.92, 27,857.66 and 13,365.92

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Solution

The fourth proportional to 20,183.92, 27,857.66 and 13,365.92 is: 18,447.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.92 : 27,857.66 = 13,365.92 : x
  2. Step 2: Convert to fraction form
    20,183.92/27,857.66 = 13,365.92/x
  3. Step 3: Cross multiply
    20,183.92x = 27,857.66 × 13,365.92
  4. Step 4: Simplify right side
    20,183.92x = 372,343,358.01
  5. Step 5: Solve for x
    x = 372,343,358.01/20,183.92
  6. Step 6: Final answer
    x = 18,447.52

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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.