Home / 20,174.88-27,841.60-11,222.72

Finding the Fourth Proportional to 20,174.88, 27,841.60 and 11,222.72

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Solution

The fourth proportional to 20,174.88, 27,841.60 and 11,222.72 is: 15,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174.88 : 27,841.60 = 11,222.72 : x
  2. Step 2: Convert to fraction form
    20,174.88/27,841.60 = 11,222.72/x
  3. Step 3: Cross multiply
    20,174.88x = 27,841.60 × 11,222.72
  4. Step 4: Simplify right side
    20,174.88x = 312,458,481.15
  5. Step 5: Solve for x
    x = 312,458,481.15/20,174.88
  6. Step 6: Final answer
    x = 15,487.50

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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.