Home / 19,664.08-29,481.30-11,871.04

Finding the Fourth Proportional to 19,664.08, 29,481.30 and 11,871.04

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Solution

The fourth proportional to 19,664.08, 29,481.30 and 11,871.04 is: 17,797.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.08 : 29,481.30 = 11,871.04 : x
  2. Step 2: Convert to fraction form
    19,664.08/29,481.30 = 11,871.04/x
  3. Step 3: Cross multiply
    19,664.08x = 29,481.30 × 11,871.04
  4. Step 4: Simplify right side
    19,664.08x = 349,973,691.55
  5. Step 5: Solve for x
    x = 349,973,691.55/19,664.08
  6. Step 6: Final answer
    x = 17,797.61

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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.