Home / 20,029.56-27,639.68-11,076.47

Finding the Fourth Proportional to 20,029.56, 27,639.68 and 11,076.47

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Solution

The fourth proportional to 20,029.56, 27,639.68 and 11,076.47 is: 15,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.56 : 27,639.68 = 11,076.47 : x
  2. Step 2: Convert to fraction form
    20,029.56/27,639.68 = 11,076.47/x
  3. Step 3: Cross multiply
    20,029.56x = 27,639.68 × 11,076.47
  4. Step 4: Simplify right side
    20,029.56x = 306,149,892.75
  5. Step 5: Solve for x
    x = 306,149,892.75/20,029.56
  6. Step 6: Final answer
    x = 15,284.90

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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.