Home / 31,290.94-43,181.24-16,950.43

Finding the Fourth Proportional to 31,290.94, 43,181.24 and 16,950.43

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Solution

The fourth proportional to 31,290.94, 43,181.24 and 16,950.43 is: 23,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,290.94 : 43,181.24 = 16,950.43 : x
  2. Step 2: Convert to fraction form
    31,290.94/43,181.24 = 16,950.43/x
  3. Step 3: Cross multiply
    31,290.94x = 43,181.24 × 16,950.43
  4. Step 4: Simplify right side
    31,290.94x = 731,940,555.16
  5. Step 5: Solve for x
    x = 731,940,555.16/31,290.94
  6. Step 6: Final answer
    x = 23,391.45

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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.