Home / 20,119.24-27,760.12-11,619.56

Finding the Fourth Proportional to 20,119.24, 27,760.12 and 11,619.56

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Solution

The fourth proportional to 20,119.24, 27,760.12 and 11,619.56 is: 16,032.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.24 : 27,760.12 = 11,619.56 : x
  2. Step 2: Convert to fraction form
    20,119.24/27,760.12 = 11,619.56/x
  3. Step 3: Cross multiply
    20,119.24x = 27,760.12 × 11,619.56
  4. Step 4: Simplify right side
    20,119.24x = 322,560,379.95
  5. Step 5: Solve for x
    x = 322,560,379.95/20,119.24
  6. Step 6: Final answer
    x = 16,032.43

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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.