Home / 20,136.66-27,788.54-11,184.14

Finding the Fourth Proportional to 20,136.66, 27,788.54 and 11,184.14

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Solution

The fourth proportional to 20,136.66, 27,788.54 and 11,184.14 is: 15,434.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.66 : 27,788.54 = 11,184.14 : x
  2. Step 2: Convert to fraction form
    20,136.66/27,788.54 = 11,184.14/x
  3. Step 3: Cross multiply
    20,136.66x = 27,788.54 × 11,184.14
  4. Step 4: Simplify right side
    20,136.66x = 310,790,921.76
  5. Step 5: Solve for x
    x = 310,790,921.76/20,136.66
  6. Step 6: Final answer
    x = 15,434.08

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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.