Home / 28,879.40-43,315.24-9,159.96

Finding the Fourth Proportional to 28,879.40, 43,315.24 and 9,159.96

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Solution

The fourth proportional to 28,879.40, 43,315.24 and 9,159.96 is: 13,738.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879.40 : 43,315.24 = 9,159.96 : x
  2. Step 2: Convert to fraction form
    28,879.40/43,315.24 = 9,159.96/x
  3. Step 3: Cross multiply
    28,879.40x = 43,315.24 × 9,159.96
  4. Step 4: Simplify right side
    28,879.40x = 396,765,865.79
  5. Step 5: Solve for x
    x = 396,765,865.79/28,879.40
  6. Step 6: Final answer
    x = 13,738.72

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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.