Home / 38,694.20-57,992.70-18,930.20

Finding the Fourth Proportional to 38,694.20, 57,992.70 and 18,930.20

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Solution

The fourth proportional to 38,694.20, 57,992.70 and 18,930.20 is: 28,371.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,694.20 : 57,992.70 = 18,930.20 : x
  2. Step 2: Convert to fraction form
    38,694.20/57,992.70 = 18,930.20/x
  3. Step 3: Cross multiply
    38,694.20x = 57,992.70 × 18,930.20
  4. Step 4: Simplify right side
    38,694.20x = 1,097,813,409.54
  5. Step 5: Solve for x
    x = 1,097,813,409.54/38,694.20
  6. Step 6: Final answer
    x = 28,371.52

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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.