Home / 27,104.67-40,656.75-21,186.54

Finding the Fourth Proportional to 27,104.67, 40,656.75 and 21,186.54

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Solution

The fourth proportional to 27,104.67, 40,656.75 and 21,186.54 is: 31,779.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,104.67 : 40,656.75 = 21,186.54 : x
  2. Step 2: Convert to fraction form
    27,104.67/40,656.75 = 21,186.54/x
  3. Step 3: Cross multiply
    27,104.67x = 40,656.75 × 21,186.54
  4. Step 4: Simplify right side
    27,104.67x = 861,375,860.15
  5. Step 5: Solve for x
    x = 861,375,860.15/27,104.67
  6. Step 6: Final answer
    x = 31,779.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.