Home / 31,578.09-43,577.91-17,431.44

Finding the Fourth Proportional to 31,578.09, 43,577.91 and 17,431.44

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Solution

The fourth proportional to 31,578.09, 43,577.91 and 17,431.44 is: 24,055.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.09 : 43,577.91 = 17,431.44 : x
  2. Step 2: Convert to fraction form
    31,578.09/43,577.91 = 17,431.44/x
  3. Step 3: Cross multiply
    31,578.09x = 43,577.91 × 17,431.44
  4. Step 4: Simplify right side
    31,578.09x = 759,625,723.49
  5. Step 5: Solve for x
    x = 759,625,723.49/31,578.09
  6. Step 6: Final answer
    x = 24,055.47

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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.