Home / 31,634.42-43,659.84-18,205.40

Finding the Fourth Proportional to 31,634.42, 43,659.84 and 18,205.40

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Solution

The fourth proportional to 31,634.42, 43,659.84 and 18,205.40 is: 25,125.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,634.42 : 43,659.84 = 18,205.40 : x
  2. Step 2: Convert to fraction form
    31,634.42/43,659.84 = 18,205.40/x
  3. Step 3: Cross multiply
    31,634.42x = 43,659.84 × 18,205.40
  4. Step 4: Simplify right side
    31,634.42x = 794,844,851.14
  5. Step 5: Solve for x
    x = 794,844,851.14/31,634.42
  6. Step 6: Final answer
    x = 25,125.95

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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.