Home / 38,455.10-57,682.65-12,161.90

Finding the Fourth Proportional to 38,455.10, 57,682.65 and 12,161.90

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Solution

The fourth proportional to 38,455.10, 57,682.65 and 12,161.90 is: 18,242.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.10 : 57,682.65 = 12,161.90 : x
  2. Step 2: Convert to fraction form
    38,455.10/57,682.65 = 12,161.90/x
  3. Step 3: Cross multiply
    38,455.10x = 57,682.65 × 12,161.90
  4. Step 4: Simplify right side
    38,455.10x = 701,530,621.04
  5. Step 5: Solve for x
    x = 701,530,621.04/38,455.10
  6. Step 6: Final answer
    x = 18,242.85

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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.