Home / 22,451.04-30,981.12-12,379.92

Finding the Fourth Proportional to 22,451.04, 30,981.12 and 12,379.92

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Solution

The fourth proportional to 22,451.04, 30,981.12 and 12,379.92 is: 17,083.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,451.04 : 30,981.12 = 12,379.92 : x
  2. Step 2: Convert to fraction form
    22,451.04/30,981.12 = 12,379.92/x
  3. Step 3: Cross multiply
    22,451.04x = 30,981.12 × 12,379.92
  4. Step 4: Simplify right side
    22,451.04x = 383,543,787.11
  5. Step 5: Solve for x
    x = 383,543,787.11/22,451.04
  6. Step 6: Final answer
    x = 17,083.56

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1.5x scale

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.