Home / 28,447.12-39,249.04-18,375.96

Finding the Fourth Proportional to 28,447.12, 39,249.04 and 18,375.96

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Solution

The fourth proportional to 28,447.12, 39,249.04 and 18,375.96 is: 25,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447.12 : 39,249.04 = 18,375.96 : x
  2. Step 2: Convert to fraction form
    28,447.12/39,249.04 = 18,375.96/x
  3. Step 3: Cross multiply
    28,447.12x = 39,249.04 × 18,375.96
  4. Step 4: Simplify right side
    28,447.12x = 721,238,789.08
  5. Step 5: Solve for x
    x = 721,238,789.08/28,447.12
  6. Step 6: Final answer
    x = 25,353.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.