Home / 22,291.24-30,761.72-12,219.65

Finding the Fourth Proportional to 22,291.24, 30,761.72 and 12,219.65

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Solution

The fourth proportional to 22,291.24, 30,761.72 and 12,219.65 is: 16,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.24 : 30,761.72 = 12,219.65 : x
  2. Step 2: Convert to fraction form
    22,291.24/30,761.72 = 12,219.65/x
  3. Step 3: Cross multiply
    22,291.24x = 30,761.72 × 12,219.65
  4. Step 4: Simplify right side
    22,291.24x = 375,897,451.80
  5. Step 5: Solve for x
    x = 375,897,451.80/22,291.24
  6. Step 6: Final answer
    x = 16,863.01

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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.