Home / 20,133.58-27,786.10-11,182.83

Finding the Fourth Proportional to 20,133.58, 27,786.10 and 11,182.83

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Solution

The fourth proportional to 20,133.58, 27,786.10 and 11,182.83 is: 15,433.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.58 : 27,786.10 = 11,182.83 : x
  2. Step 2: Convert to fraction form
    20,133.58/27,786.10 = 11,182.83/x
  3. Step 3: Cross multiply
    20,133.58x = 27,786.10 × 11,182.83
  4. Step 4: Simplify right side
    20,133.58x = 310,727,232.66
  5. Step 5: Solve for x
    x = 310,727,232.66/20,133.58
  6. Step 6: Final answer
    x = 15,433.28

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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.