Home / 39,791.55-54,913.24-21,887.52

Finding the Fourth Proportional to 39,791.55, 54,913.24 and 21,887.52

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Solution

The fourth proportional to 39,791.55, 54,913.24 and 21,887.52 is: 30,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,791.55 : 54,913.24 = 21,887.52 : x
  2. Step 2: Convert to fraction form
    39,791.55/54,913.24 = 21,887.52/x
  3. Step 3: Cross multiply
    39,791.55x = 54,913.24 × 21,887.52
  4. Step 4: Simplify right side
    39,791.55x = 1,201,914,460.20
  5. Step 5: Solve for x
    x = 1,201,914,460.20/39,791.55
  6. Step 6: Final answer
    x = 30,205.27

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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.