Home / 27,419.06-41,128.80-6,642.56

Finding the Fourth Proportional to 27,419.06, 41,128.80 and 6,642.56

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Solution

The fourth proportional to 27,419.06, 41,128.80 and 6,642.56 is: 9,963.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,419.06 : 41,128.80 = 6,642.56 : x
  2. Step 2: Convert to fraction form
    27,419.06/41,128.80 = 6,642.56/x
  3. Step 3: Cross multiply
    27,419.06x = 41,128.80 × 6,642.56
  4. Step 4: Simplify right side
    27,419.06x = 273,200,624.55
  5. Step 5: Solve for x
    x = 273,200,624.55/27,419.06
  6. Step 6: Final answer
    x = 9,963.89

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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.