Home / 31,672.56-43,668.44-20,322.03

Finding the Fourth Proportional to 31,672.56, 43,668.44 and 20,322.03

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Solution

The fourth proportional to 31,672.56, 43,668.44 and 20,322.03 is: 28,018.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,672.56 : 43,668.44 = 20,322.03 : x
  2. Step 2: Convert to fraction form
    31,672.56/43,668.44 = 20,322.03/x
  3. Step 3: Cross multiply
    31,672.56x = 43,668.44 × 20,322.03
  4. Step 4: Simplify right side
    31,672.56x = 887,431,246.12
  5. Step 5: Solve for x
    x = 887,431,246.12/31,672.56
  6. Step 6: Final answer
    x = 28,018.93

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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.