Home / 38,431.76-57,665.16-19,724.94

Finding the Fourth Proportional to 38,431.76, 57,665.16 and 19,724.94

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Solution

The fourth proportional to 38,431.76, 57,665.16 and 19,724.94 is: 29,596.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,431.76 : 57,665.16 = 19,724.94 : x
  2. Step 2: Convert to fraction form
    38,431.76/57,665.16 = 19,724.94/x
  3. Step 3: Cross multiply
    38,431.76x = 57,665.16 × 19,724.94
  4. Step 4: Simplify right side
    38,431.76x = 1,137,441,604.85
  5. Step 5: Solve for x
    x = 1,137,441,604.85/38,431.76
  6. Step 6: Final answer
    x = 29,596.39

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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.