Home / 20,029.26-27,638.79-11,076.78

Finding the Fourth Proportional to 20,029.26, 27,638.79 and 11,076.78

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Solution

The fourth proportional to 20,029.26, 27,638.79 and 11,076.78 is: 15,285.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.26 : 27,638.79 = 11,076.78 : x
  2. Step 2: Convert to fraction form
    20,029.26/27,638.79 = 11,076.78/x
  3. Step 3: Cross multiply
    20,029.26x = 27,638.79 × 11,076.78
  4. Step 4: Simplify right side
    20,029.26x = 306,148,796.30
  5. Step 5: Solve for x
    x = 306,148,796.30/20,029.26
  6. Step 6: Final answer
    x = 15,285.08

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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.