Home / 39,185.37-54,076.21-21,280.73

Finding the Fourth Proportional to 39,185.37, 54,076.21 and 21,280.73

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Solution

The fourth proportional to 39,185.37, 54,076.21 and 21,280.73 is: 29,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,185.37 : 54,076.21 = 21,280.73 : x
  2. Step 2: Convert to fraction form
    39,185.37/54,076.21 = 21,280.73/x
  3. Step 3: Cross multiply
    39,185.37x = 54,076.21 × 21,280.73
  4. Step 4: Simplify right side
    39,185.37x = 1,150,780,900.85
  5. Step 5: Solve for x
    x = 1,150,780,900.85/39,185.37
  6. Step 6: Final answer
    x = 29,367.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.