Home / 31,279.38-46,989.63-18,163.86

Finding the Fourth Proportional to 31,279.38, 46,989.63 and 18,163.86

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Solution

The fourth proportional to 31,279.38, 46,989.63 and 18,163.86 is: 27,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,279.38 : 46,989.63 = 18,163.86 : x
  2. Step 2: Convert to fraction form
    31,279.38/46,989.63 = 18,163.86/x
  3. Step 3: Cross multiply
    31,279.38x = 46,989.63 × 18,163.86
  4. Step 4: Simplify right side
    31,279.38x = 853,513,060.77
  5. Step 5: Solve for x
    x = 853,513,060.77/31,279.38
  6. Step 6: Final answer
    x = 27,286.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.