Home / 38,227.87-57,339.78-11,929.60

Finding the Fourth Proportional to 38,227.87, 57,339.78 and 11,929.60

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Solution

The fourth proportional to 38,227.87, 57,339.78 and 11,929.60 is: 17,893.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,227.87 : 57,339.78 = 11,929.60 : x
  2. Step 2: Convert to fraction form
    38,227.87/57,339.78 = 11,929.60/x
  3. Step 3: Cross multiply
    38,227.87x = 57,339.78 × 11,929.60
  4. Step 4: Simplify right side
    38,227.87x = 684,040,639.49
  5. Step 5: Solve for x
    x = 684,040,639.49/38,227.87
  6. Step 6: Final answer
    x = 17,893.77

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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.