Home / 20,083.88-27,716.36-11,130.54

Finding the Fourth Proportional to 20,083.88, 27,716.36 and 11,130.54

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Solution

The fourth proportional to 20,083.88, 27,716.36 and 11,130.54 is: 15,360.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.88 : 27,716.36 = 11,130.54 : x
  2. Step 2: Convert to fraction form
    20,083.88/27,716.36 = 11,130.54/x
  3. Step 3: Cross multiply
    20,083.88x = 27,716.36 × 11,130.54
  4. Step 4: Simplify right side
    20,083.88x = 308,498,053.63
  5. Step 5: Solve for x
    x = 308,498,053.63/20,083.88
  6. Step 6: Final answer
    x = 15,360.48

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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.