Home / 31,279.80-43,165.64-17,850.71

Finding the Fourth Proportional to 31,279.80, 43,165.64 and 17,850.71

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Solution

The fourth proportional to 31,279.80, 43,165.64 and 17,850.71 is: 24,633.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.80 : 43,165.64 = 17,850.71 : x
  2. Step 2: Convert to fraction form
    31,279.80/43,165.64 = 17,850.71/x
  3. Step 3: Cross multiply
    31,279.80x = 43,165.64 × 17,850.71
  4. Step 4: Simplify right side
    31,279.80x = 770,537,474.15
  5. Step 5: Solve for x
    x = 770,537,474.15/31,279.80
  6. Step 6: Final answer
    x = 24,633.71

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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.