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Finding the Fourth Proportional to 34,391.69, 51,602.11 and 18,791.09

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Solution

The fourth proportional to 34,391.69, 51,602.11 and 18,791.09 is: 28,194.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,391.69 : 51,602.11 = 18,791.09 : x
  2. Step 2: Convert to fraction form
    34,391.69/51,602.11 = 18,791.09/x
  3. Step 3: Cross multiply
    34,391.69x = 51,602.11 × 18,791.09
  4. Step 4: Simplify right side
    34,391.69x = 969,659,588.21
  5. Step 5: Solve for x
    x = 969,659,588.21/34,391.69
  6. Step 6: Final answer
    x = 28,194.59

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1.5x scale

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.