Home / 31,175.40-43,021.72-17,028.28

Finding the Fourth Proportional to 31,175.40, 43,021.72 and 17,028.28

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Solution

The fourth proportional to 31,175.40, 43,021.72 and 17,028.28 is: 23,498.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,175.40 : 43,021.72 = 17,028.28 : x
  2. Step 2: Convert to fraction form
    31,175.40/43,021.72 = 17,028.28/x
  3. Step 3: Cross multiply
    31,175.40x = 43,021.72 × 17,028.28
  4. Step 4: Simplify right side
    31,175.40x = 732,585,894.24
  5. Step 5: Solve for x
    x = 732,585,894.24/31,175.40
  6. Step 6: Final answer
    x = 23,498.85

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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.