Home / 16,917.84-25,380.90-11,929.95

Finding the Fourth Proportional to 16,917.84, 25,380.90 and 11,929.95

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Solution

The fourth proportional to 16,917.84, 25,380.90 and 11,929.95 is: 17,897.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,917.84 : 25,380.90 = 11,929.95 : x
  2. Step 2: Convert to fraction form
    16,917.84/25,380.90 = 11,929.95/x
  3. Step 3: Cross multiply
    16,917.84x = 25,380.90 × 11,929.95
  4. Step 4: Simplify right side
    16,917.84x = 302,792,867.96
  5. Step 5: Solve for x
    x = 302,792,867.96/16,917.84
  6. Step 6: Final answer
    x = 17,897.84

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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.