Home / 22,079.13-30,469.19-12,648.30

Finding the Fourth Proportional to 22,079.13, 30,469.19 and 12,648.30

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Solution

The fourth proportional to 22,079.13, 30,469.19 and 12,648.30 is: 17,454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,079.13 : 30,469.19 = 12,648.30 : x
  2. Step 2: Convert to fraction form
    22,079.13/30,469.19 = 12,648.30/x
  3. Step 3: Cross multiply
    22,079.13x = 30,469.19 × 12,648.30
  4. Step 4: Simplify right side
    22,079.13x = 385,383,455.88
  5. Step 5: Solve for x
    x = 385,383,455.88/22,079.13
  6. Step 6: Final answer
    x = 17,454.65

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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.