Home / 31,163.06-43,005-17,015.90

Finding the Fourth Proportional to 31,163.06, 43,005 and 17,015.90

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Solution

The fourth proportional to 31,163.06, 43,005 and 17,015.90 is: 23,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,163.06 : 43,005 = 17,015.90 : x
  2. Step 2: Convert to fraction form
    31,163.06/43,005 = 17,015.90/x
  3. Step 3: Cross multiply
    31,163.06x = 43,005 × 17,015.90
  4. Step 4: Simplify right side
    31,163.06x = 731,768,779.50
  5. Step 5: Solve for x
    x = 731,768,779.50/31,163.06
  6. Step 6: Final answer
    x = 23,481.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.