Home / 31,080.11-42,890.55-16,932.97

Finding the Fourth Proportional to 31,080.11, 42,890.55 and 16,932.97

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Solution

The fourth proportional to 31,080.11, 42,890.55 and 16,932.97 is: 23,367.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,080.11 : 42,890.55 = 16,932.97 : x
  2. Step 2: Convert to fraction form
    31,080.11/42,890.55 = 16,932.97/x
  3. Step 3: Cross multiply
    31,080.11x = 42,890.55 × 16,932.97
  4. Step 4: Simplify right side
    31,080.11x = 726,264,396.43
  5. Step 5: Solve for x
    x = 726,264,396.43/31,080.11
  6. Step 6: Final answer
    x = 23,367.50

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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.