Home / 20,151.37-27,806.68-11,652.20

Finding the Fourth Proportional to 20,151.37, 27,806.68 and 11,652.20

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Solution

The fourth proportional to 20,151.37, 27,806.68 and 11,652.20 is: 16,078.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.37 : 27,806.68 = 11,652.20 : x
  2. Step 2: Convert to fraction form
    20,151.37/27,806.68 = 11,652.20/x
  3. Step 3: Cross multiply
    20,151.37x = 27,806.68 × 11,652.20
  4. Step 4: Simplify right side
    20,151.37x = 324,008,945.72
  5. Step 5: Solve for x
    x = 324,008,945.72/20,151.37
  6. Step 6: Final answer
    x = 16,078.76

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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.