Home / 31,296.76-43,187.88-17,149.30

Finding the Fourth Proportional to 31,296.76, 43,187.88 and 17,149.30

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Solution

The fourth proportional to 31,296.76, 43,187.88 and 17,149.30 is: 23,665.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,296.76 : 43,187.88 = 17,149.30 : x
  2. Step 2: Convert to fraction form
    31,296.76/43,187.88 = 17,149.30/x
  3. Step 3: Cross multiply
    31,296.76x = 43,187.88 × 17,149.30
  4. Step 4: Simplify right side
    31,296.76x = 740,641,910.48
  5. Step 5: Solve for x
    x = 740,641,910.48/31,296.76
  6. Step 6: Final answer
    x = 23,665.13

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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.