Home / 38,158.70-57,228.32-11,849.90

Finding the Fourth Proportional to 38,158.70, 57,228.32 and 11,849.90

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Solution

The fourth proportional to 38,158.70, 57,228.32 and 11,849.90 is: 17,771.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,158.70 : 57,228.32 = 11,849.90 : x
  2. Step 2: Convert to fraction form
    38,158.70/57,228.32 = 11,849.90/x
  3. Step 3: Cross multiply
    38,158.70x = 57,228.32 × 11,849.90
  4. Step 4: Simplify right side
    38,158.70x = 678,149,612.65
  5. Step 5: Solve for x
    x = 678,149,612.65/38,158.70
  6. Step 6: Final answer
    x = 17,771.82

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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.