Home / 21,664.13-32,497.11-6,872.72

Finding the Fourth Proportional to 21,664.13, 32,497.11 and 6,872.72

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Solution

The fourth proportional to 21,664.13, 32,497.11 and 6,872.72 is: 10,309.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.13 : 32,497.11 = 6,872.72 : x
  2. Step 2: Convert to fraction form
    21,664.13/32,497.11 = 6,872.72/x
  3. Step 3: Cross multiply
    21,664.13x = 32,497.11 × 6,872.72
  4. Step 4: Simplify right side
    21,664.13x = 223,343,375.35
  5. Step 5: Solve for x
    x = 223,343,375.35/21,664.13
  6. Step 6: Final answer
    x = 10,309.37

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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.