Home / 26,879.76-40,289.76-20,284.56

Finding the Fourth Proportional to 26,879.76, 40,289.76 and 20,284.56

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Solution

The fourth proportional to 26,879.76, 40,289.76 and 20,284.56 is: 30,404.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,879.76 : 40,289.76 = 20,284.56 : x
  2. Step 2: Convert to fraction form
    26,879.76/40,289.76 = 20,284.56/x
  3. Step 3: Cross multiply
    26,879.76x = 40,289.76 × 20,284.56
  4. Step 4: Simplify right side
    26,879.76x = 817,260,054.11
  5. Step 5: Solve for x
    x = 817,260,054.11/26,879.76
  6. Step 6: Final answer
    x = 30,404.29

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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.