Home / 22,360.20-30,855.24-12,288.12

Finding the Fourth Proportional to 22,360.20, 30,855.24 and 12,288.12

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Solution

The fourth proportional to 22,360.20, 30,855.24 and 12,288.12 is: 16,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,360.20 : 30,855.24 = 12,288.12 : x
  2. Step 2: Convert to fraction form
    22,360.20/30,855.24 = 12,288.12/x
  3. Step 3: Cross multiply
    22,360.20x = 30,855.24 × 12,288.12
  4. Step 4: Simplify right side
    22,360.20x = 379,152,891.75
  5. Step 5: Solve for x
    x = 379,152,891.75/22,360.20
  6. Step 6: Final answer
    x = 16,956.60

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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.