Home / 38,279.58-57,418.86-13,319.16

Finding the Fourth Proportional to 38,279.58, 57,418.86 and 13,319.16

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Solution

The fourth proportional to 38,279.58, 57,418.86 and 13,319.16 is: 19,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,279.58 : 57,418.86 = 13,319.16 : x
  2. Step 2: Convert to fraction form
    38,279.58/57,418.86 = 13,319.16/x
  3. Step 3: Cross multiply
    38,279.58x = 57,418.86 × 13,319.16
  4. Step 4: Simplify right side
    38,279.58x = 764,770,983.36
  5. Step 5: Solve for x
    x = 764,770,983.36/38,279.58
  6. Step 6: Final answer
    x = 19,978.56

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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.