Home / 31,512.41-43,488.11-18,086.12

Finding the Fourth Proportional to 31,512.41, 43,488.11 and 18,086.12

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Solution

The fourth proportional to 31,512.41, 43,488.11 and 18,086.12 is: 24,959.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.41 : 43,488.11 = 18,086.12 : x
  2. Step 2: Convert to fraction form
    31,512.41/43,488.11 = 18,086.12/x
  3. Step 3: Cross multiply
    31,512.41x = 43,488.11 × 18,086.12
  4. Step 4: Simplify right side
    31,512.41x = 786,531,176.03
  5. Step 5: Solve for x
    x = 786,531,176.03/31,512.41
  6. Step 6: Final answer
    x = 24,959.41

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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.