Home / 21,622.91-32,424.29-11,231.87

Finding the Fourth Proportional to 21,622.91, 32,424.29 and 11,231.87

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Solution

The fourth proportional to 21,622.91, 32,424.29 and 11,231.87 is: 16,842.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.91 : 32,424.29 = 11,231.87 : x
  2. Step 2: Convert to fraction form
    21,622.91/32,424.29 = 11,231.87/x
  3. Step 3: Cross multiply
    21,622.91x = 32,424.29 × 11,231.87
  4. Step 4: Simplify right side
    21,622.91x = 364,185,353.96
  5. Step 5: Solve for x
    x = 364,185,353.96/21,622.91
  6. Step 6: Final answer
    x = 16,842.57

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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.