Home / 20,232.11-27,919.62-12,682.51

Finding the Fourth Proportional to 20,232.11, 27,919.62 and 12,682.51

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Solution

The fourth proportional to 20,232.11, 27,919.62 and 12,682.51 is: 17,501.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.11 : 27,919.62 = 12,682.51 : x
  2. Step 2: Convert to fraction form
    20,232.11/27,919.62 = 12,682.51/x
  3. Step 3: Cross multiply
    20,232.11x = 27,919.62 × 12,682.51
  4. Step 4: Simplify right side
    20,232.11x = 354,090,790.05
  5. Step 5: Solve for x
    x = 354,090,790.05/20,232.11
  6. Step 6: Final answer
    x = 17,501.42

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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.