Home / 31,921.44-47,907.12-22,129.68

Finding the Fourth Proportional to 31,921.44, 47,907.12 and 22,129.68

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Solution

The fourth proportional to 31,921.44, 47,907.12 and 22,129.68 is: 33,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.44 : 47,907.12 = 22,129.68 : x
  2. Step 2: Convert to fraction form
    31,921.44/47,907.12 = 22,129.68/x
  3. Step 3: Cross multiply
    31,921.44x = 47,907.12 × 22,129.68
  4. Step 4: Simplify right side
    31,921.44x = 1,060,169,235.32
  5. Step 5: Solve for x
    x = 1,060,169,235.32/31,921.44
  6. Step 6: Final answer
    x = 33,211.82

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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.