Home / 18,830.15-28,245.43-5,682.64

Finding the Fourth Proportional to 18,830.15, 28,245.43 and 5,682.64

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Solution

The fourth proportional to 18,830.15, 28,245.43 and 5,682.64 is: 8,524.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.15 : 28,245.43 = 5,682.64 : x
  2. Step 2: Convert to fraction form
    18,830.15/28,245.43 = 5,682.64/x
  3. Step 3: Cross multiply
    18,830.15x = 28,245.43 × 5,682.64
  4. Step 4: Simplify right side
    18,830.15x = 160,508,610.34
  5. Step 5: Solve for x
    x = 160,508,610.34/18,830.15
  6. Step 6: Final answer
    x = 8,524.02

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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.