Home / 31,591.43-43,603.65-18,170.44

Finding the Fourth Proportional to 31,591.43, 43,603.65 and 18,170.44

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Solution

The fourth proportional to 31,591.43, 43,603.65 and 18,170.44 is: 25,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,591.43 : 43,603.65 = 18,170.44 : x
  2. Step 2: Convert to fraction form
    31,591.43/43,603.65 = 18,170.44/x
  3. Step 3: Cross multiply
    31,591.43x = 43,603.65 × 18,170.44
  4. Step 4: Simplify right side
    31,591.43x = 792,297,397.10
  5. Step 5: Solve for x
    x = 792,297,397.10/31,591.43
  6. Step 6: Final answer
    x = 25,079.51

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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.