Home / 20,134.87-27,786.50-11,183.22

Finding the Fourth Proportional to 20,134.87, 27,786.50 and 11,183.22

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Solution

The fourth proportional to 20,134.87, 27,786.50 and 11,183.22 is: 15,433.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.87 : 27,786.50 = 11,183.22 : x
  2. Step 2: Convert to fraction form
    20,134.87/27,786.50 = 11,183.22/x
  3. Step 3: Cross multiply
    20,134.87x = 27,786.50 × 11,183.22
  4. Step 4: Simplify right side
    20,134.87x = 310,742,542.53
  5. Step 5: Solve for x
    x = 310,742,542.53/20,134.87
  6. Step 6: Final answer
    x = 15,433.05

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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.