Home / 20,018.13-27,625.01-11,186.13

Finding the Fourth Proportional to 20,018.13, 27,625.01 and 11,186.13

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Solution

The fourth proportional to 20,018.13, 27,625.01 and 11,186.13 is: 15,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.13 : 27,625.01 = 11,186.13 : x
  2. Step 2: Convert to fraction form
    20,018.13/27,625.01 = 11,186.13/x
  3. Step 3: Cross multiply
    20,018.13x = 27,625.01 × 11,186.13
  4. Step 4: Simplify right side
    20,018.13x = 309,016,953.11
  5. Step 5: Solve for x
    x = 309,016,953.11/20,018.13
  6. Step 6: Final answer
    x = 15,436.85

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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.