Home / 38,456.64-57,684.62-12,161.40

Finding the Fourth Proportional to 38,456.64, 57,684.62 and 12,161.40

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Solution

The fourth proportional to 38,456.64, 57,684.62 and 12,161.40 is: 18,241.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,456.64 : 57,684.62 = 12,161.40 : x
  2. Step 2: Convert to fraction form
    38,456.64/57,684.62 = 12,161.40/x
  3. Step 3: Cross multiply
    38,456.64x = 57,684.62 × 12,161.40
  4. Step 4: Simplify right side
    38,456.64x = 701,525,737.67
  5. Step 5: Solve for x
    x = 701,525,737.67/38,456.64
  6. Step 6: Final answer
    x = 18,241.99

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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.