Home / 31,634.88-43,660.52-18,205.89

Finding the Fourth Proportional to 31,634.88, 43,660.52 and 18,205.89

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Solution

The fourth proportional to 31,634.88, 43,660.52 and 18,205.89 is: 25,126.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,634.88 : 43,660.52 = 18,205.89 : x
  2. Step 2: Convert to fraction form
    31,634.88/43,660.52 = 18,205.89/x
  3. Step 3: Cross multiply
    31,634.88x = 43,660.52 × 18,205.89
  4. Step 4: Simplify right side
    31,634.88x = 794,878,624.46
  5. Step 5: Solve for x
    x = 794,878,624.46/31,634.88
  6. Step 6: Final answer
    x = 25,126.65

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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.