Home / 31,512.68-43,488.46-18,086.38

Finding the Fourth Proportional to 31,512.68, 43,488.46 and 18,086.38

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Solution

The fourth proportional to 31,512.68, 43,488.46 and 18,086.38 is: 24,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.68 : 43,488.46 = 18,086.38 : x
  2. Step 2: Convert to fraction form
    31,512.68/43,488.46 = 18,086.38/x
  3. Step 3: Cross multiply
    31,512.68x = 43,488.46 × 18,086.38
  4. Step 4: Simplify right side
    31,512.68x = 786,548,813.17
  5. Step 5: Solve for x
    x = 786,548,813.17/31,512.68
  6. Step 6: Final answer
    x = 24,959.76

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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.