Home / 27,928.32-38,540.89-15,181.18

Finding the Fourth Proportional to 27,928.32, 38,540.89 and 15,181.18

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Solution

The fourth proportional to 27,928.32, 38,540.89 and 15,181.18 is: 20,949.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.32 : 38,540.89 = 15,181.18 : x
  2. Step 2: Convert to fraction form
    27,928.32/38,540.89 = 15,181.18/x
  3. Step 3: Cross multiply
    27,928.32x = 38,540.89 × 15,181.18
  4. Step 4: Simplify right side
    27,928.32x = 585,096,188.45
  5. Step 5: Solve for x
    x = 585,096,188.45/27,928.32
  6. Step 6: Final answer
    x = 20,949.92

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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.