Home / 20,185.20-27,852.36-11,232.66

Finding the Fourth Proportional to 20,185.20, 27,852.36 and 11,232.66

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Solution

The fourth proportional to 20,185.20, 27,852.36 and 11,232.66 is: 15,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.20 : 27,852.36 = 11,232.66 : x
  2. Step 2: Convert to fraction form
    20,185.20/27,852.36 = 11,232.66/x
  3. Step 3: Cross multiply
    20,185.20x = 27,852.36 × 11,232.66
  4. Step 4: Simplify right side
    20,185.20x = 312,856,090.08
  5. Step 5: Solve for x
    x = 312,856,090.08/20,185.20
  6. Step 6: Final answer
    x = 15,499.28

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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.