Home / 39,704.24-54,791.94-21,800.40

Finding the Fourth Proportional to 39,704.24, 54,791.94 and 21,800.40

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Solution

The fourth proportional to 39,704.24, 54,791.94 and 21,800.40 is: 30,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,704.24 : 54,791.94 = 21,800.40 : x
  2. Step 2: Convert to fraction form
    39,704.24/54,791.94 = 21,800.40/x
  3. Step 3: Cross multiply
    39,704.24x = 54,791.94 × 21,800.40
  4. Step 4: Simplify right side
    39,704.24x = 1,194,486,208.78
  5. Step 5: Solve for x
    x = 1,194,486,208.78/39,704.24
  6. Step 6: Final answer
    x = 30,084.60

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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.