Home / 31,291.31-43,181.73-16,950.80

Finding the Fourth Proportional to 31,291.31, 43,181.73 and 16,950.80

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Solution

The fourth proportional to 31,291.31, 43,181.73 and 16,950.80 is: 23,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,291.31 : 43,181.73 = 16,950.80 : x
  2. Step 2: Convert to fraction form
    31,291.31/43,181.73 = 16,950.80/x
  3. Step 3: Cross multiply
    31,291.31x = 43,181.73 × 16,950.80
  4. Step 4: Simplify right side
    31,291.31x = 731,964,652.98
  5. Step 5: Solve for x
    x = 731,964,652.98/31,291.31
  6. Step 6: Final answer
    x = 23,391.95

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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.