Home / 31,161.20-43,002.60-17,014.36

Finding the Fourth Proportional to 31,161.20, 43,002.60 and 17,014.36

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Solution

The fourth proportional to 31,161.20, 43,002.60 and 17,014.36 is: 23,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.20 : 43,002.60 = 17,014.36 : x
  2. Step 2: Convert to fraction form
    31,161.20/43,002.60 = 17,014.36/x
  3. Step 3: Cross multiply
    31,161.20x = 43,002.60 × 17,014.36
  4. Step 4: Simplify right side
    31,161.20x = 731,661,717.34
  5. Step 5: Solve for x
    x = 731,661,717.34/31,161.20
  6. Step 6: Final answer
    x = 23,479.90

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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.