Home / 31,163.52-43,034.40-20,004.96

Finding the Fourth Proportional to 31,163.52, 43,034.40 and 20,004.96

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Solution

The fourth proportional to 31,163.52, 43,034.40 and 20,004.96 is: 27,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,163.52 : 43,034.40 = 20,004.96 : x
  2. Step 2: Convert to fraction form
    31,163.52/43,034.40 = 20,004.96/x
  3. Step 3: Cross multiply
    31,163.52x = 43,034.40 × 20,004.96
  4. Step 4: Simplify right side
    31,163.52x = 860,901,450.62
  5. Step 5: Solve for x
    x = 860,901,450.62/31,163.52
  6. Step 6: Final answer
    x = 27,625.30

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1.5x scale

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.