Home / 38,121.84-57,162.24-11,819.52

Finding the Fourth Proportional to 38,121.84, 57,162.24 and 11,819.52

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Solution

The fourth proportional to 38,121.84, 57,162.24 and 11,819.52 is: 17,722.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,121.84 : 57,162.24 = 11,819.52 : x
  2. Step 2: Convert to fraction form
    38,121.84/57,162.24 = 11,819.52/x
  3. Step 3: Cross multiply
    38,121.84x = 57,162.24 × 11,819.52
  4. Step 4: Simplify right side
    38,121.84x = 675,630,238.92
  5. Step 5: Solve for x
    x = 675,630,238.92/38,121.84
  6. Step 6: Final answer
    x = 17,722.92

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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.