Home / 38,631.88-57,910.83-12,319.57

Finding the Fourth Proportional to 38,631.88, 57,910.83 and 12,319.57

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Solution

The fourth proportional to 38,631.88, 57,910.83 and 12,319.57 is: 18,467.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.88 : 57,910.83 = 12,319.57 : x
  2. Step 2: Convert to fraction form
    38,631.88/57,910.83 = 12,319.57/x
  3. Step 3: Cross multiply
    38,631.88x = 57,910.83 × 12,319.57
  4. Step 4: Simplify right side
    38,631.88x = 713,436,523.94
  5. Step 5: Solve for x
    x = 713,436,523.94/38,631.88
  6. Step 6: Final answer
    x = 18,467.56

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1.5x scale

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.