Home / 38,415.79-57,546.83-30,531.61

Finding the Fourth Proportional to 38,415.79, 57,546.83 and 30,531.61

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Solution

The fourth proportional to 38,415.79, 57,546.83 and 30,531.61 is: 45,736.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,415.79 : 57,546.83 = 30,531.61 : x
  2. Step 2: Convert to fraction form
    38,415.79/57,546.83 = 30,531.61/x
  3. Step 3: Cross multiply
    38,415.79x = 57,546.83 × 30,531.61
  4. Step 4: Simplify right side
    38,415.79x = 1,756,997,217.64
  5. Step 5: Solve for x
    x = 1,756,997,217.64/38,415.79
  6. Step 6: Final answer
    x = 45,736.33

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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.