Home / 20,028.64-27,639.99-11,076.31

Finding the Fourth Proportional to 20,028.64, 27,639.99 and 11,076.31

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Solution

The fourth proportional to 20,028.64, 27,639.99 and 11,076.31 is: 15,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.64 : 27,639.99 = 11,076.31 : x
  2. Step 2: Convert to fraction form
    20,028.64/27,639.99 = 11,076.31/x
  3. Step 3: Cross multiply
    20,028.64x = 27,639.99 × 11,076.31
  4. Step 4: Simplify right side
    20,028.64x = 306,149,097.64
  5. Step 5: Solve for x
    x = 306,149,097.64/20,028.64
  6. Step 6: Final answer
    x = 15,285.57

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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.