Home / 19,456.65-29,138.20-11,111.37

Finding the Fourth Proportional to 19,456.65, 29,138.20 and 11,111.37

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Solution

The fourth proportional to 19,456.65, 29,138.20 and 11,111.37 is: 16,640.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,456.65 : 29,138.20 = 11,111.37 : x
  2. Step 2: Convert to fraction form
    19,456.65/29,138.20 = 11,111.37/x
  3. Step 3: Cross multiply
    19,456.65x = 29,138.20 × 11,111.37
  4. Step 4: Simplify right side
    19,456.65x = 323,765,293.56
  5. Step 5: Solve for x
    x = 323,765,293.56/19,456.65
  6. Step 6: Final answer
    x = 16,640.34

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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.