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Finding the Fourth Proportional to 28,879.29, 43,323.04 and 8,890.44

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Solution

The fourth proportional to 28,879.29, 43,323.04 and 8,890.44 is: 13,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879.29 : 43,323.04 = 8,890.44 : x
  2. Step 2: Convert to fraction form
    28,879.29/43,323.04 = 8,890.44/x
  3. Step 3: Cross multiply
    28,879.29x = 43,323.04 × 8,890.44
  4. Step 4: Simplify right side
    28,879.29x = 385,161,101.93
  5. Step 5: Solve for x
    x = 385,161,101.93/28,879.29
  6. Step 6: Final answer
    x = 13,336.93

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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.