Home / 19,751.12-29,553.88-11,858.43

Finding the Fourth Proportional to 19,751.12, 29,553.88 and 11,858.43

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Solution

The fourth proportional to 19,751.12, 29,553.88 and 11,858.43 is: 17,743.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,751.12 : 29,553.88 = 11,858.43 : x
  2. Step 2: Convert to fraction form
    19,751.12/29,553.88 = 11,858.43/x
  3. Step 3: Cross multiply
    19,751.12x = 29,553.88 × 11,858.43
  4. Step 4: Simplify right side
    19,751.12x = 350,462,587.56
  5. Step 5: Solve for x
    x = 350,462,587.56/19,751.12
  6. Step 6: Final answer
    x = 17,743.94

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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.