Home / 36,269.75-54,371.79-12,890.72

Finding the Fourth Proportional to 36,269.75, 54,371.79 and 12,890.72

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Solution

The fourth proportional to 36,269.75, 54,371.79 and 12,890.72 is: 19,324.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,269.75 : 54,371.79 = 12,890.72 : x
  2. Step 2: Convert to fraction form
    36,269.75/54,371.79 = 12,890.72/x
  3. Step 3: Cross multiply
    36,269.75x = 54,371.79 × 12,890.72
  4. Step 4: Simplify right side
    36,269.75x = 700,891,248.93
  5. Step 5: Solve for x
    x = 700,891,248.93/36,269.75
  6. Step 6: Final answer
    x = 19,324.41

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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.