Home / 39,180.16-54,067.44-21,274.84

Finding the Fourth Proportional to 39,180.16, 54,067.44 and 21,274.84

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Solution

The fourth proportional to 39,180.16, 54,067.44 and 21,274.84 is: 29,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,180.16 : 54,067.44 = 21,274.84 : x
  2. Step 2: Convert to fraction form
    39,180.16/54,067.44 = 21,274.84/x
  3. Step 3: Cross multiply
    39,180.16x = 54,067.44 × 21,274.84
  4. Step 4: Simplify right side
    39,180.16x = 1,150,276,135.21
  5. Step 5: Solve for x
    x = 1,150,276,135.21/39,180.16
  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.