Home / 18,819.36-28,230.24-4,968

Finding the Fourth Proportional to 18,819.36, 28,230.24 and 4,968

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Solution

The fourth proportional to 18,819.36, 28,230.24 and 4,968 is: 7,452.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.36 : 28,230.24 = 4,968 : x
  2. Step 2: Convert to fraction form
    18,819.36/28,230.24 = 4,968/x
  3. Step 3: Cross multiply
    18,819.36x = 28,230.24 × 4,968
  4. Step 4: Simplify right side
    18,819.36x = 140,247,832.32
  5. Step 5: Solve for x
    x = 140,247,832.32/18,819.36
  6. Step 6: Final answer
    x = 7,452.32

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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.