Home / 20,109.79-27,752.83-11,612.27

Finding the Fourth Proportional to 20,109.79, 27,752.83 and 11,612.27

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Solution

The fourth proportional to 20,109.79, 27,752.83 and 11,612.27 is: 16,025.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,109.79 : 27,752.83 = 11,612.27 : x
  2. Step 2: Convert to fraction form
    20,109.79/27,752.83 = 11,612.27/x
  3. Step 3: Cross multiply
    20,109.79x = 27,752.83 × 11,612.27
  4. Step 4: Simplify right side
    20,109.79x = 322,273,355.22
  5. Step 5: Solve for x
    x = 322,273,355.22/20,109.79
  6. Step 6: Final answer
    x = 16,025.69

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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.