Home / 31,286.86-43,178.97-17,860.14

Finding the Fourth Proportional to 31,286.86, 43,178.97 and 17,860.14

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Solution

The fourth proportional to 31,286.86, 43,178.97 and 17,860.14 is: 24,648.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,286.86 : 43,178.97 = 17,860.14 : x
  2. Step 2: Convert to fraction form
    31,286.86/43,178.97 = 17,860.14/x
  3. Step 3: Cross multiply
    31,286.86x = 43,178.97 × 17,860.14
  4. Step 4: Simplify right side
    31,286.86x = 771,182,449.26
  5. Step 5: Solve for x
    x = 771,182,449.26/31,286.86
  6. Step 6: Final answer
    x = 24,648.76

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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.