Home / 22,190.28-30,622.83-12,119.02

Finding the Fourth Proportional to 22,190.28, 30,622.83 and 12,119.02

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Solution

The fourth proportional to 22,190.28, 30,622.83 and 12,119.02 is: 16,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.28 : 30,622.83 = 12,119.02 : x
  2. Step 2: Convert to fraction form
    22,190.28/30,622.83 = 12,119.02/x
  3. Step 3: Cross multiply
    22,190.28x = 30,622.83 × 12,119.02
  4. Step 4: Simplify right side
    22,190.28x = 371,118,536.11
  5. Step 5: Solve for x
    x = 371,118,536.11/22,190.28
  6. Step 6: Final answer
    x = 16,724.37

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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.