Home / 31,788.69-43,851.82-18,860.44

Finding the Fourth Proportional to 31,788.69, 43,851.82 and 18,860.44

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Solution

The fourth proportional to 31,788.69, 43,851.82 and 18,860.44 is: 26,017.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.69 : 43,851.82 = 18,860.44 : x
  2. Step 2: Convert to fraction form
    31,788.69/43,851.82 = 18,860.44/x
  3. Step 3: Cross multiply
    31,788.69x = 43,851.82 × 18,860.44
  4. Step 4: Simplify right side
    31,788.69x = 827,064,620.00
  5. Step 5: Solve for x
    x = 827,064,620.00/31,788.69
  6. Step 6: Final answer
    x = 26,017.57

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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.