Home / 38,003.76-57,018.12-18,279.72

Finding the Fourth Proportional to 38,003.76, 57,018.12 and 18,279.72

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Solution

The fourth proportional to 38,003.76, 57,018.12 and 18,279.72 is: 27,425.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,003.76 : 57,018.12 = 18,279.72 : x
  2. Step 2: Convert to fraction form
    38,003.76/57,018.12 = 18,279.72/x
  3. Step 3: Cross multiply
    38,003.76x = 57,018.12 × 18,279.72
  4. Step 4: Simplify right side
    38,003.76x = 1,042,275,268.53
  5. Step 5: Solve for x
    x = 1,042,275,268.53/38,003.76
  6. Step 6: Final answer
    x = 27,425.58

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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.