Home / 38,329.20-57,374.88-20,755.44

Finding the Fourth Proportional to 38,329.20, 57,374.88 and 20,755.44

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Solution

The fourth proportional to 38,329.20, 57,374.88 and 20,755.44 is: 31,068.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,329.20 : 57,374.88 = 20,755.44 : x
  2. Step 2: Convert to fraction form
    38,329.20/57,374.88 = 20,755.44/x
  3. Step 3: Cross multiply
    38,329.20x = 57,374.88 × 20,755.44
  4. Step 4: Simplify right side
    38,329.20x = 1,190,840,879.35
  5. Step 5: Solve for x
    x = 1,190,840,879.35/38,329.20
  6. Step 6: Final answer
    x = 31,068.76

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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.