Home / 27,788.76-38,355.24-17,172

Finding the Fourth Proportional to 27,788.76, 38,355.24 and 17,172

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Solution

The fourth proportional to 27,788.76, 38,355.24 and 17,172 is: 23,701.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,788.76 : 38,355.24 = 17,172 : x
  2. Step 2: Convert to fraction form
    27,788.76/38,355.24 = 17,172/x
  3. Step 3: Cross multiply
    27,788.76x = 38,355.24 × 17,172
  4. Step 4: Simplify right side
    27,788.76x = 658,636,181.28
  5. Step 5: Solve for x
    x = 658,636,181.28/27,788.76
  6. Step 6: Final answer
    x = 23,701.53

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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.