Home / 31,741.98-43,811.19-20,544.54

Finding the Fourth Proportional to 31,741.98, 43,811.19 and 20,544.54

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Solution

The fourth proportional to 31,741.98, 43,811.19 and 20,544.54 is: 28,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,741.98 : 43,811.19 = 20,544.54 : x
  2. Step 2: Convert to fraction form
    31,741.98/43,811.19 = 20,544.54/x
  3. Step 3: Cross multiply
    31,741.98x = 43,811.19 × 20,544.54
  4. Step 4: Simplify right side
    31,741.98x = 900,080,745.40
  5. Step 5: Solve for x
    x = 900,080,745.40/31,741.98
  6. Step 6: Final answer
    x = 28,356.16

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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.