Home / 38,238.56-57,392.87-19,531.72

Finding the Fourth Proportional to 38,238.56, 57,392.87 and 19,531.72

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Solution

The fourth proportional to 38,238.56, 57,392.87 and 19,531.72 is: 29,315.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238.56 : 57,392.87 = 19,531.72 : x
  2. Step 2: Convert to fraction form
    38,238.56/57,392.87 = 19,531.72/x
  3. Step 3: Cross multiply
    38,238.56x = 57,392.87 × 19,531.72
  4. Step 4: Simplify right side
    38,238.56x = 1,120,981,118.08
  5. Step 5: Solve for x
    x = 1,120,981,118.08/38,238.56
  6. Step 6: Final answer
    x = 29,315.46

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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.