Home / 20,134.50-27,785.64-11,183.46

Finding the Fourth Proportional to 20,134.50, 27,785.64 and 11,183.46

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Solution

The fourth proportional to 20,134.50, 27,785.64 and 11,183.46 is: 15,433.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.50 : 27,785.64 = 11,183.46 : x
  2. Step 2: Convert to fraction form
    20,134.50/27,785.64 = 11,183.46/x
  3. Step 3: Cross multiply
    20,134.50x = 27,785.64 × 11,183.46
  4. Step 4: Simplify right side
    20,134.50x = 310,739,593.51
  5. Step 5: Solve for x
    x = 310,739,593.51/20,134.50
  6. Step 6: Final answer
    x = 15,433.19

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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.