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Finding the Fourth Proportional to 18,027.44, 27,041.04 and 4,879.76

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Solution

The fourth proportional to 18,027.44, 27,041.04 and 4,879.76 is: 7,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,027.44 : 27,041.04 = 4,879.76 : x
  2. Step 2: Convert to fraction form
    18,027.44/27,041.04 = 4,879.76/x
  3. Step 3: Cross multiply
    18,027.44x = 27,041.04 × 4,879.76
  4. Step 4: Simplify right side
    18,027.44x = 131,953,785.35
  5. Step 5: Solve for x
    x = 131,953,785.35/18,027.44
  6. Step 6: Final answer
    x = 7,319.61

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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.