Home / 20,141.13-27,793.22-11,188.47

Finding the Fourth Proportional to 20,141.13, 27,793.22 and 11,188.47

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Solution

The fourth proportional to 20,141.13, 27,793.22 and 11,188.47 is: 15,439.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.13 : 27,793.22 = 11,188.47 : x
  2. Step 2: Convert to fraction form
    20,141.13/27,793.22 = 11,188.47/x
  3. Step 3: Cross multiply
    20,141.13x = 27,793.22 × 11,188.47
  4. Step 4: Simplify right side
    20,141.13x = 310,963,552.23
  5. Step 5: Solve for x
    x = 310,963,552.23/20,141.13
  6. Step 6: Final answer
    x = 15,439.23

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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.