Home / 39,414.92-54,393.74-21,511.07

Finding the Fourth Proportional to 39,414.92, 54,393.74 and 21,511.07

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Solution

The fourth proportional to 39,414.92, 54,393.74 and 21,511.07 is: 29,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,414.92 : 54,393.74 = 21,511.07 : x
  2. Step 2: Convert to fraction form
    39,414.92/54,393.74 = 21,511.07/x
  3. Step 3: Cross multiply
    39,414.92x = 54,393.74 × 21,511.07
  4. Step 4: Simplify right side
    39,414.92x = 1,170,067,548.70
  5. Step 5: Solve for x
    x = 1,170,067,548.70/39,414.92
  6. Step 6: Final answer
    x = 29,685.90

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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.