Home / 21,976.52-32,950.19-12,120.44

Finding the Fourth Proportional to 21,976.52, 32,950.19 and 12,120.44

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Solution

The fourth proportional to 21,976.52, 32,950.19 and 12,120.44 is: 18,172.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,976.52 : 32,950.19 = 12,120.44 : x
  2. Step 2: Convert to fraction form
    21,976.52/32,950.19 = 12,120.44/x
  3. Step 3: Cross multiply
    21,976.52x = 32,950.19 × 12,120.44
  4. Step 4: Simplify right side
    21,976.52x = 399,370,666.43
  5. Step 5: Solve for x
    x = 399,370,666.43/21,976.52
  6. Step 6: Final answer
    x = 18,172.61

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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.