Home / 18,824.08-28,233.96-4,972.72

Finding the Fourth Proportional to 18,824.08, 28,233.96 and 4,972.72

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Solution

The fourth proportional to 18,824.08, 28,233.96 and 4,972.72 is: 7,458.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.08 : 28,233.96 = 4,972.72 : x
  2. Step 2: Convert to fraction form
    18,824.08/28,233.96 = 4,972.72/x
  3. Step 3: Cross multiply
    18,824.08x = 28,233.96 × 4,972.72
  4. Step 4: Simplify right side
    18,824.08x = 140,399,577.57
  5. Step 5: Solve for x
    x = 140,399,577.57/18,824.08
  6. Step 6: Final answer
    x = 7,458.51

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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.