Home / 39,424.52-54,403.79-21,519.27

Finding the Fourth Proportional to 39,424.52, 54,403.79 and 21,519.27

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Solution

The fourth proportional to 39,424.52, 54,403.79 and 21,519.27 is: 29,695.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,424.52 : 54,403.79 = 21,519.27 : x
  2. Step 2: Convert to fraction form
    39,424.52/54,403.79 = 21,519.27/x
  3. Step 3: Cross multiply
    39,424.52x = 54,403.79 × 21,519.27
  4. Step 4: Simplify right side
    39,424.52x = 1,170,729,738.44
  5. Step 5: Solve for x
    x = 1,170,729,738.44/39,424.52
  6. Step 6: Final answer
    x = 29,695.47

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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.