Home / 39,791.68-54,913.88-21,887.44

Finding the Fourth Proportional to 39,791.68, 54,913.88 and 21,887.44

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Solution

The fourth proportional to 39,791.68, 54,913.88 and 21,887.44 is: 30,205.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,791.68 : 54,913.88 = 21,887.44 : x
  2. Step 2: Convert to fraction form
    39,791.68/54,913.88 = 21,887.44/x
  3. Step 3: Cross multiply
    39,791.68x = 54,913.88 × 21,887.44
  4. Step 4: Simplify right side
    39,791.68x = 1,201,924,253.67
  5. Step 5: Solve for x
    x = 1,201,924,253.67/39,791.68
  6. Step 6: Final answer
    x = 30,205.42

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1.5x scale

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.