Home / 18,879.75-28,317.81-5,732.24

Finding the Fourth Proportional to 18,879.75, 28,317.81 and 5,732.24

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Solution

The fourth proportional to 18,879.75, 28,317.81 and 5,732.24 is: 8,597.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879.75 : 28,317.81 = 5,732.24 : x
  2. Step 2: Convert to fraction form
    18,879.75/28,317.81 = 5,732.24/x
  3. Step 3: Cross multiply
    18,879.75x = 28,317.81 × 5,732.24
  4. Step 4: Simplify right side
    18,879.75x = 162,324,483.19
  5. Step 5: Solve for x
    x = 162,324,483.19/18,879.75
  6. Step 6: Final answer
    x = 8,597.81

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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.