Home / 20,126.34-27,775.66-11,628.84

Finding the Fourth Proportional to 20,126.34, 27,775.66 and 11,628.84

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Solution

The fourth proportional to 20,126.34, 27,775.66 and 11,628.84 is: 16,048.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.34 : 27,775.66 = 11,628.84 : x
  2. Step 2: Convert to fraction form
    20,126.34/27,775.66 = 11,628.84/x
  3. Step 3: Cross multiply
    20,126.34x = 27,775.66 × 11,628.84
  4. Step 4: Simplify right side
    20,126.34x = 322,998,706.03
  5. Step 5: Solve for x
    x = 322,998,706.03/20,126.34
  6. Step 6: Final answer
    x = 16,048.56

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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.