Home / 20,112.53-27,759.32-11,616.03

Finding the Fourth Proportional to 20,112.53, 27,759.32 and 11,616.03

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Solution

The fourth proportional to 20,112.53, 27,759.32 and 11,616.03 is: 16,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.53 : 27,759.32 = 11,616.03 : x
  2. Step 2: Convert to fraction form
    20,112.53/27,759.32 = 11,616.03/x
  3. Step 3: Cross multiply
    20,112.53x = 27,759.32 × 11,616.03
  4. Step 4: Simplify right side
    20,112.53x = 322,453,035.82
  5. Step 5: Solve for x
    x = 322,453,035.82/20,112.53
  6. Step 6: Final answer
    x = 16,032.45

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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.