Home / 20,230.56-27,921.84-11,738.10

Finding the Fourth Proportional to 20,230.56, 27,921.84 and 11,738.10

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Solution

The fourth proportional to 20,230.56, 27,921.84 and 11,738.10 is: 16,200.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.56 : 27,921.84 = 11,738.10 : x
  2. Step 2: Convert to fraction form
    20,230.56/27,921.84 = 11,738.10/x
  3. Step 3: Cross multiply
    20,230.56x = 27,921.84 × 11,738.10
  4. Step 4: Simplify right side
    20,230.56x = 327,749,350.10
  5. Step 5: Solve for x
    x = 327,749,350.10/20,230.56
  6. Step 6: Final answer
    x = 16,200.71

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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.