Home / 28,818.31-43,231.24-11,285.86

Finding the Fourth Proportional to 28,818.31, 43,231.24 and 11,285.86

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Solution

The fourth proportional to 28,818.31, 43,231.24 and 11,285.86 is: 16,930.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.31 : 43,231.24 = 11,285.86 : x
  2. Step 2: Convert to fraction form
    28,818.31/43,231.24 = 11,285.86/x
  3. Step 3: Cross multiply
    28,818.31x = 43,231.24 × 11,285.86
  4. Step 4: Simplify right side
    28,818.31x = 487,901,477.90
  5. Step 5: Solve for x
    x = 487,901,477.90/28,818.31
  6. Step 6: Final answer
    x = 16,930.26

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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.