Home / 18,682.56-28,020.48-4,830.72

Finding the Fourth Proportional to 18,682.56, 28,020.48 and 4,830.72

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Solution

The fourth proportional to 18,682.56, 28,020.48 and 4,830.72 is: 7,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.56 : 28,020.48 = 4,830.72 : x
  2. Step 2: Convert to fraction form
    18,682.56/28,020.48 = 4,830.72/x
  3. Step 3: Cross multiply
    18,682.56x = 28,020.48 × 4,830.72
  4. Step 4: Simplify right side
    18,682.56x = 135,359,093.15
  5. Step 5: Solve for x
    x = 135,359,093.15/18,682.56
  6. Step 6: Final answer
    x = 7,245.21

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1.5x scale

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.