Home / 20,114.20-27,753.30-12,154.84

Finding the Fourth Proportional to 20,114.20, 27,753.30 and 12,154.84

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Solution

The fourth proportional to 20,114.20, 27,753.30 and 12,154.84 is: 16,771.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.20 : 27,753.30 = 12,154.84 : x
  2. Step 2: Convert to fraction form
    20,114.20/27,753.30 = 12,154.84/x
  3. Step 3: Cross multiply
    20,114.20x = 27,753.30 × 12,154.84
  4. Step 4: Simplify right side
    20,114.20x = 337,336,920.97
  5. Step 5: Solve for x
    x = 337,336,920.97/20,114.20
  6. Step 6: Final answer
    x = 16,771.08

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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.