Home / 35,067.28-48,391.62-20,912.80

Finding the Fourth Proportional to 35,067.28, 48,391.62 and 20,912.80

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Solution

The fourth proportional to 35,067.28, 48,391.62 and 20,912.80 is: 28,858.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,067.28 : 48,391.62 = 20,912.80 : x
  2. Step 2: Convert to fraction form
    35,067.28/48,391.62 = 20,912.80/x
  3. Step 3: Cross multiply
    35,067.28x = 48,391.62 × 20,912.80
  4. Step 4: Simplify right side
    35,067.28x = 1,012,004,270.74
  5. Step 5: Solve for x
    x = 1,012,004,270.74/35,067.28
  6. Step 6: Final answer
    x = 28,858.93

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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.