Home / 31,161.88-43,003.12-17,014.80

Finding the Fourth Proportional to 31,161.88, 43,003.12 and 17,014.80

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Solution

The fourth proportional to 31,161.88, 43,003.12 and 17,014.80 is: 23,480.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.88 : 43,003.12 = 17,014.80 : x
  2. Step 2: Convert to fraction form
    31,161.88/43,003.12 = 17,014.80/x
  3. Step 3: Cross multiply
    31,161.88x = 43,003.12 × 17,014.80
  4. Step 4: Simplify right side
    31,161.88x = 731,689,486.18
  5. Step 5: Solve for x
    x = 731,689,486.18/31,161.88
  6. Step 6: Final answer
    x = 23,480.27

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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.