Home / 31,021.46-42,809.94-16,874.33

Finding the Fourth Proportional to 31,021.46, 42,809.94 and 16,874.33

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Solution

The fourth proportional to 31,021.46, 42,809.94 and 16,874.33 is: 23,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,021.46 : 42,809.94 = 16,874.33 : x
  2. Step 2: Convert to fraction form
    31,021.46/42,809.94 = 16,874.33/x
  3. Step 3: Cross multiply
    31,021.46x = 42,809.94 × 16,874.33
  4. Step 4: Simplify right side
    31,021.46x = 722,389,161.87
  5. Step 5: Solve for x
    x = 722,389,161.87/31,021.46
  6. Step 6: Final answer
    x = 23,286.76

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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.