Home / 21,382.73-32,045.84-15,479.36

Finding the Fourth Proportional to 21,382.73, 32,045.84 and 15,479.36

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Solution

The fourth proportional to 21,382.73, 32,045.84 and 15,479.36 is: 23,198.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.73 : 32,045.84 = 15,479.36 : x
  2. Step 2: Convert to fraction form
    21,382.73/32,045.84 = 15,479.36/x
  3. Step 3: Cross multiply
    21,382.73x = 32,045.84 × 15,479.36
  4. Step 4: Simplify right side
    21,382.73x = 496,049,093.86
  5. Step 5: Solve for x
    x = 496,049,093.86/21,382.73
  6. Step 6: Final answer
    x = 23,198.59

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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.