Home / 20,168.55-27,833.31-11,216.43

Finding the Fourth Proportional to 20,168.55, 27,833.31 and 11,216.43

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Solution

The fourth proportional to 20,168.55, 27,833.31 and 11,216.43 is: 15,479.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.55 : 27,833.31 = 11,216.43 : x
  2. Step 2: Convert to fraction form
    20,168.55/27,833.31 = 11,216.43/x
  3. Step 3: Cross multiply
    20,168.55x = 27,833.31 × 11,216.43
  4. Step 4: Simplify right side
    20,168.55x = 312,190,373.28
  5. Step 5: Solve for x
    x = 312,190,373.28/20,168.55
  6. Step 6: Final answer
    x = 15,479.07

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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.