Home / 39,296.42-54,229.20-21,391.64

Finding the Fourth Proportional to 39,296.42, 54,229.20 and 21,391.64

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Solution

The fourth proportional to 39,296.42, 54,229.20 and 21,391.64 is: 29,520.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,296.42 : 54,229.20 = 21,391.64 : x
  2. Step 2: Convert to fraction form
    39,296.42/54,229.20 = 21,391.64/x
  3. Step 3: Cross multiply
    39,296.42x = 54,229.20 × 21,391.64
  4. Step 4: Simplify right side
    39,296.42x = 1,160,051,523.89
  5. Step 5: Solve for x
    x = 1,160,051,523.89/39,296.42
  6. Step 6: Final answer
    x = 29,520.54

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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.