Home / 19,251.75-28,879.26-5,400.75

Finding the Fourth Proportional to 19,251.75, 28,879.26 and 5,400.75

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Solution

The fourth proportional to 19,251.75, 28,879.26 and 5,400.75 is: 8,101.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251.75 : 28,879.26 = 5,400.75 : x
  2. Step 2: Convert to fraction form
    19,251.75/28,879.26 = 5,400.75/x
  3. Step 3: Cross multiply
    19,251.75x = 28,879.26 × 5,400.75
  4. Step 4: Simplify right side
    19,251.75x = 155,969,663.45
  5. Step 5: Solve for x
    x = 155,969,663.45/19,251.75
  6. Step 6: Final answer
    x = 8,101.58

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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.