Home / 20,260.56-27,961.68-11,311.14

Finding the Fourth Proportional to 20,260.56, 27,961.68 and 11,311.14

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Solution

The fourth proportional to 20,260.56, 27,961.68 and 11,311.14 is: 15,610.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.56 : 27,961.68 = 11,311.14 : x
  2. Step 2: Convert to fraction form
    20,260.56/27,961.68 = 11,311.14/x
  3. Step 3: Cross multiply
    20,260.56x = 27,961.68 × 11,311.14
  4. Step 4: Simplify right side
    20,260.56x = 316,278,477.12
  5. Step 5: Solve for x
    x = 316,278,477.12/20,260.56
  6. Step 6: Final answer
    x = 15,610.55

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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.