Home / 31,122.09-46,617.49-21,132.97

Finding the Fourth Proportional to 31,122.09, 46,617.49 and 21,132.97

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Solution

The fourth proportional to 31,122.09, 46,617.49 and 21,132.97 is: 31,654.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,122.09 : 46,617.49 = 21,132.97 : x
  2. Step 2: Convert to fraction form
    31,122.09/46,617.49 = 21,132.97/x
  3. Step 3: Cross multiply
    31,122.09x = 46,617.49 × 21,132.97
  4. Step 4: Simplify right side
    31,122.09x = 985,165,731.73
  5. Step 5: Solve for x
    x = 985,165,731.73/31,122.09
  6. Step 6: Final answer
    x = 31,654.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.