Home / 31,028.72-46,525.40-21,179.92

Finding the Fourth Proportional to 31,028.72, 46,525.40 and 21,179.92

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Solution

The fourth proportional to 31,028.72, 46,525.40 and 21,179.92 is: 31,757.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,028.72 : 46,525.40 = 21,179.92 : x
  2. Step 2: Convert to fraction form
    31,028.72/46,525.40 = 21,179.92/x
  3. Step 3: Cross multiply
    31,028.72x = 46,525.40 × 21,179.92
  4. Step 4: Simplify right side
    31,028.72x = 985,404,249.97
  5. Step 5: Solve for x
    x = 985,404,249.97/31,028.72
  6. Step 6: Final answer
    x = 31,757.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.