Home / 20,160.06-27,819-11,660.82

Finding the Fourth Proportional to 20,160.06, 27,819 and 11,660.82

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Solution

The fourth proportional to 20,160.06, 27,819 and 11,660.82 is: 16,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.06 : 27,819 = 11,660.82 : x
  2. Step 2: Convert to fraction form
    20,160.06/27,819 = 11,660.82/x
  3. Step 3: Cross multiply
    20,160.06x = 27,819 × 11,660.82
  4. Step 4: Simplify right side
    20,160.06x = 324,392,351.58
  5. Step 5: Solve for x
    x = 324,392,351.58/20,160.06
  6. Step 6: Final answer
    x = 16,090.84

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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.