Home / 20,161.32-27,820.72-11,662.08

Finding the Fourth Proportional to 20,161.32, 27,820.72 and 11,662.08

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Solution

The fourth proportional to 20,161.32, 27,820.72 and 11,662.08 is: 16,092.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.32 : 27,820.72 = 11,662.08 : x
  2. Step 2: Convert to fraction form
    20,161.32/27,820.72 = 11,662.08/x
  3. Step 3: Cross multiply
    20,161.32x = 27,820.72 × 11,662.08
  4. Step 4: Simplify right side
    20,161.32x = 324,447,462.30
  5. Step 5: Solve for x
    x = 324,447,462.30/20,161.32
  6. Step 6: Final answer
    x = 16,092.57

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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.