Home / 28,879.53-39,832.42-18,258.91

Finding the Fourth Proportional to 28,879.53, 39,832.42 and 18,258.91

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Solution

The fourth proportional to 28,879.53, 39,832.42 and 18,258.91 is: 25,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879.53 : 39,832.42 = 18,258.91 : x
  2. Step 2: Convert to fraction form
    28,879.53/39,832.42 = 18,258.91/x
  3. Step 3: Cross multiply
    28,879.53x = 39,832.42 × 18,258.91
  4. Step 4: Simplify right side
    28,879.53x = 727,296,571.86
  5. Step 5: Solve for x
    x = 727,296,571.86/28,879.53
  6. Step 6: Final answer
    x = 25,183.81

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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.