Home / 38,539.78-57,755.34-18,255.01

Finding the Fourth Proportional to 38,539.78, 57,755.34 and 18,255.01

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Solution

The fourth proportional to 38,539.78, 57,755.34 and 18,255.01 is: 27,356.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,539.78 : 57,755.34 = 18,255.01 : x
  2. Step 2: Convert to fraction form
    38,539.78/57,755.34 = 18,255.01/x
  3. Step 3: Cross multiply
    38,539.78x = 57,755.34 × 18,255.01
  4. Step 4: Simplify right side
    38,539.78x = 1,054,324,309.25
  5. Step 5: Solve for x
    x = 1,054,324,309.25/38,539.78
  6. Step 6: Final answer
    x = 27,356.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.