Home / 38,751.12-58,121.16-12,452.46

Finding the Fourth Proportional to 38,751.12, 58,121.16 and 12,452.46

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Solution

The fourth proportional to 38,751.12, 58,121.16 and 12,452.46 is: 18,676.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,751.12 : 58,121.16 = 12,452.46 : x
  2. Step 2: Convert to fraction form
    38,751.12/58,121.16 = 12,452.46/x
  3. Step 3: Cross multiply
    38,751.12x = 58,121.16 × 12,452.46
  4. Step 4: Simplify right side
    38,751.12x = 723,751,420.05
  5. Step 5: Solve for x
    x = 723,751,420.05/38,751.12
  6. Step 6: Final answer
    x = 18,676.92

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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.