Home / 28,687.08-43,029.54-7,910.04

Finding the Fourth Proportional to 28,687.08, 43,029.54 and 7,910.04

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Solution

The fourth proportional to 28,687.08, 43,029.54 and 7,910.04 is: 11,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.08 : 43,029.54 = 7,910.04 : x
  2. Step 2: Convert to fraction form
    28,687.08/43,029.54 = 7,910.04/x
  3. Step 3: Cross multiply
    28,687.08x = 43,029.54 × 7,910.04
  4. Step 4: Simplify right side
    28,687.08x = 340,365,382.58
  5. Step 5: Solve for x
    x = 340,365,382.58/28,687.08
  6. Step 6: Final answer
    x = 11,864.76

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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.