Home / 39,274.60-54,198.42-21,369.40

Finding the Fourth Proportional to 39,274.60, 54,198.42 and 21,369.40

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Solution

The fourth proportional to 39,274.60, 54,198.42 and 21,369.40 is: 29,489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,274.60 : 54,198.42 = 21,369.40 : x
  2. Step 2: Convert to fraction form
    39,274.60/54,198.42 = 21,369.40/x
  3. Step 3: Cross multiply
    39,274.60x = 54,198.42 × 21,369.40
  4. Step 4: Simplify right side
    39,274.60x = 1,158,187,716.35
  5. Step 5: Solve for x
    x = 1,158,187,716.35/39,274.60
  6. Step 6: Final answer
    x = 29,489.48

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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.