Home / 27,778.19-38,334.82-15,202.94

Finding the Fourth Proportional to 27,778.19, 38,334.82 and 15,202.94

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Solution

The fourth proportional to 27,778.19, 38,334.82 and 15,202.94 is: 20,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.19 : 38,334.82 = 15,202.94 : x
  2. Step 2: Convert to fraction form
    27,778.19/38,334.82 = 15,202.94/x
  3. Step 3: Cross multiply
    27,778.19x = 38,334.82 × 15,202.94
  4. Step 4: Simplify right side
    27,778.19x = 582,801,968.37
  5. Step 5: Solve for x
    x = 582,801,968.37/27,778.19
  6. Step 6: Final answer
    x = 20,980.56

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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.