Home / 27,879.67-38,474.00-15,132.86

Finding the Fourth Proportional to 27,879.67, 38,474.00 and 15,132.86

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Solution

The fourth proportional to 27,879.67, 38,474.00 and 15,132.86 is: 20,883.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,879.67 : 38,474.00 = 15,132.86 : x
  2. Step 2: Convert to fraction form
    27,879.67/38,474.00 = 15,132.86/x
  3. Step 3: Cross multiply
    27,879.67x = 38,474.00 × 15,132.86
  4. Step 4: Simplify right side
    27,879.67x = 582,221,772.22
  5. Step 5: Solve for x
    x = 582,221,772.22/27,879.67
  6. Step 6: Final answer
    x = 20,883.38

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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.