Home / 22,451.13-30,982.77-12,379.95

Finding the Fourth Proportional to 22,451.13, 30,982.77 and 12,379.95

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Solution

The fourth proportional to 22,451.13, 30,982.77 and 12,379.95 is: 17,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,451.13 : 30,982.77 = 12,379.95 : x
  2. Step 2: Convert to fraction form
    22,451.13/30,982.77 = 12,379.95/x
  3. Step 3: Cross multiply
    22,451.13x = 30,982.77 × 12,379.95
  4. Step 4: Simplify right side
    22,451.13x = 383,565,143.46
  5. Step 5: Solve for x
    x = 383,565,143.46/22,451.13
  6. Step 6: Final answer
    x = 17,084.45

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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.