Home / 20,005.16-27,606.66-11,052.20

Finding the Fourth Proportional to 20,005.16, 27,606.66 and 11,052.20

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Solution

The fourth proportional to 20,005.16, 27,606.66 and 11,052.20 is: 15,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.16 : 27,606.66 = 11,052.20 : x
  2. Step 2: Convert to fraction form
    20,005.16/27,606.66 = 11,052.20/x
  3. Step 3: Cross multiply
    20,005.16x = 27,606.66 × 11,052.20
  4. Step 4: Simplify right side
    20,005.16x = 305,114,327.65
  5. Step 5: Solve for x
    x = 305,114,327.65/20,005.16
  6. Step 6: Final answer
    x = 15,251.78

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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.