Home / 31,515.17-43,490.75-17,174.97

Finding the Fourth Proportional to 31,515.17, 43,490.75 and 17,174.97

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Solution

The fourth proportional to 31,515.17, 43,490.75 and 17,174.97 is: 23,701.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.17 : 43,490.75 = 17,174.97 : x
  2. Step 2: Convert to fraction form
    31,515.17/43,490.75 = 17,174.97/x
  3. Step 3: Cross multiply
    31,515.17x = 43,490.75 × 17,174.97
  4. Step 4: Simplify right side
    31,515.17x = 746,952,240.65
  5. Step 5: Solve for x
    x = 746,952,240.65/31,515.17
  6. Step 6: Final answer
    x = 23,701.36

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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.