Home / 27,773.76-38,328.42-15,198.54

Finding the Fourth Proportional to 27,773.76, 38,328.42 and 15,198.54

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Solution

The fourth proportional to 27,773.76, 38,328.42 and 15,198.54 is: 20,974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,773.76 : 38,328.42 = 15,198.54 : x
  2. Step 2: Convert to fraction form
    27,773.76/38,328.42 = 15,198.54/x
  3. Step 3: Cross multiply
    27,773.76x = 38,328.42 × 15,198.54
  4. Step 4: Simplify right side
    27,773.76x = 582,536,024.51
  5. Step 5: Solve for x
    x = 582,536,024.51/27,773.76
  6. Step 6: Final answer
    x = 20,974.33

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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.