Home / 28,917.37-43,382.44-12,291.61

Finding the Fourth Proportional to 28,917.37, 43,382.44 and 12,291.61

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Solution

The fourth proportional to 28,917.37, 43,382.44 and 12,291.61 is: 18,440.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,917.37 : 43,382.44 = 12,291.61 : x
  2. Step 2: Convert to fraction form
    28,917.37/43,382.44 = 12,291.61/x
  3. Step 3: Cross multiply
    28,917.37x = 43,382.44 × 12,291.61
  4. Step 4: Simplify right side
    28,917.37x = 533,240,033.33
  5. Step 5: Solve for x
    x = 533,240,033.33/28,917.37
  6. Step 6: Final answer
    x = 18,440.13

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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.