Home / 38,511.51-57,769.17-12,213.82

Finding the Fourth Proportional to 38,511.51, 57,769.17 and 12,213.82

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Solution

The fourth proportional to 38,511.51, 57,769.17 and 12,213.82 is: 18,321.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.51 : 57,769.17 = 12,213.82 : x
  2. Step 2: Convert to fraction form
    38,511.51/57,769.17 = 12,213.82/x
  3. Step 3: Cross multiply
    38,511.51x = 57,769.17 × 12,213.82
  4. Step 4: Simplify right side
    38,511.51x = 705,582,243.93
  5. Step 5: Solve for x
    x = 705,582,243.93/38,511.51
  6. Step 6: Final answer
    x = 18,321.33

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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.