Home / 22,286.80-30,755.59-12,215.04

Finding the Fourth Proportional to 22,286.80, 30,755.59 and 12,215.04

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Solution

The fourth proportional to 22,286.80, 30,755.59 and 12,215.04 is: 16,856.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,286.80 : 30,755.59 = 12,215.04 : x
  2. Step 2: Convert to fraction form
    22,286.80/30,755.59 = 12,215.04/x
  3. Step 3: Cross multiply
    22,286.80x = 30,755.59 × 12,215.04
  4. Step 4: Simplify right side
    22,286.80x = 375,680,762.07
  5. Step 5: Solve for x
    x = 375,680,762.07/22,286.80
  6. Step 6: Final answer
    x = 16,856.65

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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.