Home / 40,067.80-55,288.72-22,160.36

Finding the Fourth Proportional to 40,067.80, 55,288.72 and 22,160.36

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Solution

The fourth proportional to 40,067.80, 55,288.72 and 22,160.36 is: 30,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,067.80 : 55,288.72 = 22,160.36 : x
  2. Step 2: Convert to fraction form
    40,067.80/55,288.72 = 22,160.36/x
  3. Step 3: Cross multiply
    40,067.80x = 55,288.72 × 22,160.36
  4. Step 4: Simplify right side
    40,067.80x = 1,225,217,939.14
  5. Step 5: Solve for x
    x = 1,225,217,939.14/40,067.80
  6. Step 6: Final answer
    x = 30,578.62

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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.