Home / 18,800.32-28,140.96-13,227.84

Finding the Fourth Proportional to 18,800.32, 28,140.96 and 13,227.84

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Solution

The fourth proportional to 18,800.32, 28,140.96 and 13,227.84 is: 19,799.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.32 : 28,140.96 = 13,227.84 : x
  2. Step 2: Convert to fraction form
    18,800.32/28,140.96 = 13,227.84/x
  3. Step 3: Cross multiply
    18,800.32x = 28,140.96 × 13,227.84
  4. Step 4: Simplify right side
    18,800.32x = 372,244,116.33
  5. Step 5: Solve for x
    x = 372,244,116.33/18,800.32
  6. Step 6: Final answer
    x = 19,799.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.