Home / 31,738.61-43,797.75-18,314.20

Finding the Fourth Proportional to 31,738.61, 43,797.75 and 18,314.20

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Solution

The fourth proportional to 31,738.61, 43,797.75 and 18,314.20 is: 25,272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,738.61 : 43,797.75 = 18,314.20 : x
  2. Step 2: Convert to fraction form
    31,738.61/43,797.75 = 18,314.20/x
  3. Step 3: Cross multiply
    31,738.61x = 43,797.75 × 18,314.20
  4. Step 4: Simplify right side
    31,738.61x = 802,120,753.05
  5. Step 5: Solve for x
    x = 802,120,753.05/31,738.61
  6. Step 6: Final answer
    x = 25,272.71

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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.