Home / 20,303.53-30,451.11-7,819.27

Finding the Fourth Proportional to 20,303.53, 30,451.11 and 7,819.27

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Solution

The fourth proportional to 20,303.53, 30,451.11 and 7,819.27 is: 11,727.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.53 : 30,451.11 = 7,819.27 : x
  2. Step 2: Convert to fraction form
    20,303.53/30,451.11 = 7,819.27/x
  3. Step 3: Cross multiply
    20,303.53x = 30,451.11 × 7,819.27
  4. Step 4: Simplify right side
    20,303.53x = 238,105,450.89
  5. Step 5: Solve for x
    x = 238,105,450.89/20,303.53
  6. Step 6: Final answer
    x = 11,727.29

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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.