Home / 19,100.39-28,668.82-11,719.26

Finding the Fourth Proportional to 19,100.39, 28,668.82 and 11,719.26

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Solution

The fourth proportional to 19,100.39, 28,668.82 and 11,719.26 is: 17,590.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.39 : 28,668.82 = 11,719.26 : x
  2. Step 2: Convert to fraction form
    19,100.39/28,668.82 = 11,719.26/x
  3. Step 3: Cross multiply
    19,100.39x = 28,668.82 × 11,719.26
  4. Step 4: Simplify right side
    19,100.39x = 335,977,397.85
  5. Step 5: Solve for x
    x = 335,977,397.85/19,100.39
  6. Step 6: Final answer
    x = 17,590.08

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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.