Home / 27,765.44-38,315.52-15,190.08

Finding the Fourth Proportional to 27,765.44, 38,315.52 and 15,190.08

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Solution

The fourth proportional to 27,765.44, 38,315.52 and 15,190.08 is: 20,961.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765.44 : 38,315.52 = 15,190.08 : x
  2. Step 2: Convert to fraction form
    27,765.44/38,315.52 = 15,190.08/x
  3. Step 3: Cross multiply
    27,765.44x = 38,315.52 × 15,190.08
  4. Step 4: Simplify right side
    27,765.44x = 582,015,814.04
  5. Step 5: Solve for x
    x = 582,015,814.04/27,765.44
  6. Step 6: Final answer
    x = 20,961.88

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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.