Home / 19,296.60-28,921.05-11,391.09

Finding the Fourth Proportional to 19,296.60, 28,921.05 and 11,391.09

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Solution

The fourth proportional to 19,296.60, 28,921.05 and 11,391.09 is: 17,072.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,296.60 : 28,921.05 = 11,391.09 : x
  2. Step 2: Convert to fraction form
    19,296.60/28,921.05 = 11,391.09/x
  3. Step 3: Cross multiply
    19,296.60x = 28,921.05 × 11,391.09
  4. Step 4: Simplify right side
    19,296.60x = 329,442,283.44
  5. Step 5: Solve for x
    x = 329,442,283.44/19,296.60
  6. Step 6: Final answer
    x = 17,072.56

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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.