Home / 22,451.12-30,982.76-12,379.95

Finding the Fourth Proportional to 22,451.12, 30,982.76 and 12,379.95

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Solution

The fourth proportional to 22,451.12, 30,982.76 and 12,379.95 is: 17,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,451.12 : 30,982.76 = 12,379.95 : x
  2. Step 2: Convert to fraction form
    22,451.12/30,982.76 = 12,379.95/x
  3. Step 3: Cross multiply
    22,451.12x = 30,982.76 × 12,379.95
  4. Step 4: Simplify right side
    22,451.12x = 383,564,957.76
  5. Step 5: Solve for x
    x = 383,564,957.76/22,451.12
  6. Step 6: Final answer
    x = 17,084.45

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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.