Home / 18,030.88-27,044.62-12,788.36

Finding the Fourth Proportional to 18,030.88, 27,044.62 and 12,788.36

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Solution

The fourth proportional to 18,030.88, 27,044.62 and 12,788.36 is: 19,181.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.88 : 27,044.62 = 12,788.36 : x
  2. Step 2: Convert to fraction form
    18,030.88/27,044.62 = 12,788.36/x
  3. Step 3: Cross multiply
    18,030.88x = 27,044.62 × 12,788.36
  4. Step 4: Simplify right side
    18,030.88x = 345,856,336.62
  5. Step 5: Solve for x
    x = 345,856,336.62/18,030.88
  6. Step 6: Final answer
    x = 19,181.33

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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.