Home / 39,180.37-54,067.40-21,274.97

Finding the Fourth Proportional to 39,180.37, 54,067.40 and 21,274.97

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Solution

The fourth proportional to 39,180.37, 54,067.40 and 21,274.97 is: 29,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,180.37 : 54,067.40 = 21,274.97 : x
  2. Step 2: Convert to fraction form
    39,180.37/54,067.40 = 21,274.97/x
  3. Step 3: Cross multiply
    39,180.37x = 54,067.40 × 21,274.97
  4. Step 4: Simplify right side
    39,180.37x = 1,150,282,312.98
  5. Step 5: Solve for x
    x = 1,150,282,312.98/39,180.37
  6. Step 6: Final answer
    x = 29,358.64

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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.