Home / 20,242.52-27,935.16-11,168

Finding the Fourth Proportional to 20,242.52, 27,935.16 and 11,168

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Solution

The fourth proportional to 20,242.52, 27,935.16 and 11,168 is: 15,412.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.52 : 27,935.16 = 11,168 : x
  2. Step 2: Convert to fraction form
    20,242.52/27,935.16 = 11,168/x
  3. Step 3: Cross multiply
    20,242.52x = 27,935.16 × 11,168
  4. Step 4: Simplify right side
    20,242.52x = 311,979,866.88
  5. Step 5: Solve for x
    x = 311,979,866.88/20,242.52
  6. Step 6: Final answer
    x = 15,412.11

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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.