Home / 20,028.94-27,639.48-11,076.51

Finding the Fourth Proportional to 20,028.94, 27,639.48 and 11,076.51

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Solution

The fourth proportional to 20,028.94, 27,639.48 and 11,076.51 is: 15,285.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.94 : 27,639.48 = 11,076.51 : x
  2. Step 2: Convert to fraction form
    20,028.94/27,639.48 = 11,076.51/x
  3. Step 3: Cross multiply
    20,028.94x = 27,639.48 × 11,076.51
  4. Step 4: Simplify right side
    20,028.94x = 306,149,059.49
  5. Step 5: Solve for x
    x = 306,149,059.49/20,028.94
  6. Step 6: Final answer
    x = 15,285.34

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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.