Home / 31,295.97-43,187.78-17,147.90

Finding the Fourth Proportional to 31,295.97, 43,187.78 and 17,147.90

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Solution

The fourth proportional to 31,295.97, 43,187.78 and 17,147.90 is: 23,663.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,295.97 : 43,187.78 = 17,147.90 : x
  2. Step 2: Convert to fraction form
    31,295.97/43,187.78 = 17,147.90/x
  3. Step 3: Cross multiply
    31,295.97x = 43,187.78 × 17,147.90
  4. Step 4: Simplify right side
    31,295.97x = 740,579,883.50
  5. Step 5: Solve for x
    x = 740,579,883.50/31,295.97
  6. Step 6: Final answer
    x = 23,663.75

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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.