Home / 31,213.88-43,078.08-17,068.80

Finding the Fourth Proportional to 31,213.88, 43,078.08 and 17,068.80

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Solution

The fourth proportional to 31,213.88, 43,078.08 and 17,068.80 is: 23,556.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,213.88 : 43,078.08 = 17,068.80 : x
  2. Step 2: Convert to fraction form
    31,213.88/43,078.08 = 17,068.80/x
  3. Step 3: Cross multiply
    31,213.88x = 43,078.08 × 17,068.80
  4. Step 4: Simplify right side
    31,213.88x = 735,291,131.90
  5. Step 5: Solve for x
    x = 735,291,131.90/31,213.88
  6. Step 6: Final answer
    x = 23,556.54

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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.