Home / 20,131.34-27,785.32-11,633.81

Finding the Fourth Proportional to 20,131.34, 27,785.32 and 11,633.81

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Solution

The fourth proportional to 20,131.34, 27,785.32 and 11,633.81 is: 16,057.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.34 : 27,785.32 = 11,633.81 : x
  2. Step 2: Convert to fraction form
    20,131.34/27,785.32 = 11,633.81/x
  3. Step 3: Cross multiply
    20,131.34x = 27,785.32 × 11,633.81
  4. Step 4: Simplify right side
    20,131.34x = 323,249,296.43
  5. Step 5: Solve for x
    x = 323,249,296.43/20,131.34
  6. Step 6: Final answer
    x = 16,057.02

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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.