Home / 39,791.46-54,913.53-21,887.10

Finding the Fourth Proportional to 39,791.46, 54,913.53 and 21,887.10

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Solution

The fourth proportional to 39,791.46, 54,913.53 and 21,887.10 is: 30,204.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,791.46 : 54,913.53 = 21,887.10 : x
  2. Step 2: Convert to fraction form
    39,791.46/54,913.53 = 21,887.10/x
  3. Step 3: Cross multiply
    39,791.46x = 54,913.53 × 21,887.10
  4. Step 4: Simplify right side
    39,791.46x = 1,201,897,922.46
  5. Step 5: Solve for x
    x = 1,201,897,922.46/39,791.46
  6. Step 6: Final answer
    x = 30,204.92

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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.