Home / 31,282.35-43,170.20-17,134.28

Finding the Fourth Proportional to 31,282.35, 43,170.20 and 17,134.28

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Solution

The fourth proportional to 31,282.35, 43,170.20 and 17,134.28 is: 23,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,282.35 : 43,170.20 = 17,134.28 : x
  2. Step 2: Convert to fraction form
    31,282.35/43,170.20 = 17,134.28/x
  3. Step 3: Cross multiply
    31,282.35x = 43,170.20 × 17,134.28
  4. Step 4: Simplify right side
    31,282.35x = 739,689,992.93
  5. Step 5: Solve for x
    x = 739,689,992.93/31,282.35
  6. Step 6: Final answer
    x = 23,645.60

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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.