Home / 27,867.87-41,800.23-20,379.09

Finding the Fourth Proportional to 27,867.87, 41,800.23 and 20,379.09

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Solution

The fourth proportional to 27,867.87, 41,800.23 and 20,379.09 is: 30,567.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,867.87 : 41,800.23 = 20,379.09 : x
  2. Step 2: Convert to fraction form
    27,867.87/41,800.23 = 20,379.09/x
  3. Step 3: Cross multiply
    27,867.87x = 41,800.23 × 20,379.09
  4. Step 4: Simplify right side
    27,867.87x = 851,850,649.19
  5. Step 5: Solve for x
    x = 851,850,649.19/27,867.87
  6. Step 6: Final answer
    x = 30,567.48

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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.