Home / 39,179.76-54,067.76-21,274.56

Finding the Fourth Proportional to 39,179.76, 54,067.76 and 21,274.56

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Solution

The fourth proportional to 39,179.76, 54,067.76 and 21,274.56 is: 29,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,179.76 : 54,067.76 = 21,274.56 : x
  2. Step 2: Convert to fraction form
    39,179.76/54,067.76 = 21,274.56/x
  3. Step 3: Cross multiply
    39,179.76x = 54,067.76 × 21,274.56
  4. Step 4: Simplify right side
    39,179.76x = 1,150,267,804.19
  5. Step 5: Solve for x
    x = 1,150,267,804.19/39,179.76
  6. Step 6: Final answer
    x = 29,358.73

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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.