Home / 39,743.41-54,845.88-21,839.57

Finding the Fourth Proportional to 39,743.41, 54,845.88 and 21,839.57

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Solution

The fourth proportional to 39,743.41, 54,845.88 and 21,839.57 is: 30,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,743.41 : 54,845.88 = 21,839.57 : x
  2. Step 2: Convert to fraction form
    39,743.41/54,845.88 = 21,839.57/x
  3. Step 3: Cross multiply
    39,743.41x = 54,845.88 × 21,839.57
  4. Step 4: Simplify right side
    39,743.41x = 1,197,810,161.24
  5. Step 5: Solve for x
    x = 1,197,810,161.24/39,743.41
  6. Step 6: Final answer
    x = 30,138.59

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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.