Home / 28,905.93-43,357.91-12,255.24

Finding the Fourth Proportional to 28,905.93, 43,357.91 and 12,255.24

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Solution

The fourth proportional to 28,905.93, 43,357.91 and 12,255.24 is: 18,382.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.93 : 43,357.91 = 12,255.24 : x
  2. Step 2: Convert to fraction form
    28,905.93/43,357.91 = 12,255.24/x
  3. Step 3: Cross multiply
    28,905.93x = 43,357.91 × 12,255.24
  4. Step 4: Simplify right side
    28,905.93x = 531,361,531.67
  5. Step 5: Solve for x
    x = 531,361,531.67/28,905.93
  6. Step 6: Final answer
    x = 18,382.44

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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.