Home / 19,885.20-27,441.21-10,932.60

Finding the Fourth Proportional to 19,885.20, 27,441.21 and 10,932.60

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Solution

The fourth proportional to 19,885.20, 27,441.21 and 10,932.60 is: 15,086.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,885.20 : 27,441.21 = 10,932.60 : x
  2. Step 2: Convert to fraction form
    19,885.20/27,441.21 = 10,932.60/x
  3. Step 3: Cross multiply
    19,885.20x = 27,441.21 × 10,932.60
  4. Step 4: Simplify right side
    19,885.20x = 300,003,772.45
  5. Step 5: Solve for x
    x = 300,003,772.45/19,885.20
  6. Step 6: Final answer
    x = 15,086.79

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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.