Home / 20,131.59-27,785.67-11,634.07

Finding the Fourth Proportional to 20,131.59, 27,785.67 and 11,634.07

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Solution

The fourth proportional to 20,131.59, 27,785.67 and 11,634.07 is: 16,057.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.59 : 27,785.67 = 11,634.07 : x
  2. Step 2: Convert to fraction form
    20,131.59/27,785.67 = 11,634.07/x
  3. Step 3: Cross multiply
    20,131.59x = 27,785.67 × 11,634.07
  4. Step 4: Simplify right side
    20,131.59x = 323,260,261.76
  5. Step 5: Solve for x
    x = 323,260,261.76/20,131.59
  6. Step 6: Final answer
    x = 16,057.37

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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.