Home / 22,450.57-30,981.99-12,379.37

Finding the Fourth Proportional to 22,450.57, 30,981.99 and 12,379.37

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Solution

The fourth proportional to 22,450.57, 30,981.99 and 12,379.37 is: 17,083.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,450.57 : 30,981.99 = 12,379.37 : x
  2. Step 2: Convert to fraction form
    22,450.57/30,981.99 = 12,379.37/x
  3. Step 3: Cross multiply
    22,450.57x = 30,981.99 × 12,379.37
  4. Step 4: Simplify right side
    22,450.57x = 383,537,539.76
  5. Step 5: Solve for x
    x = 383,537,539.76/22,450.57
  6. Step 6: Final answer
    x = 17,083.65

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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.