Home / 20,028.98-27,639.45-11,076.86

Finding the Fourth Proportional to 20,028.98, 27,639.45 and 11,076.86

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Solution

The fourth proportional to 20,028.98, 27,639.45 and 11,076.86 is: 15,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.98 : 27,639.45 = 11,076.86 : x
  2. Step 2: Convert to fraction form
    20,028.98/27,639.45 = 11,076.86/x
  3. Step 3: Cross multiply
    20,028.98x = 27,639.45 × 11,076.86
  4. Step 4: Simplify right side
    20,028.98x = 306,158,387.23
  5. Step 5: Solve for x
    x = 306,158,387.23/20,028.98
  6. Step 6: Final answer
    x = 15,285.77

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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.