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Finding the Fourth Proportional to 20,169.60, 30,263.04 and 7,014.80

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Solution

The fourth proportional to 20,169.60, 30,263.04 and 7,014.80 is: 10,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.60 : 30,263.04 = 7,014.80 : x
  2. Step 2: Convert to fraction form
    20,169.60/30,263.04 = 7,014.80/x
  3. Step 3: Cross multiply
    20,169.60x = 30,263.04 × 7,014.80
  4. Step 4: Simplify right side
    20,169.60x = 212,289,172.99
  5. Step 5: Solve for x
    x = 212,289,172.99/20,169.60
  6. Step 6: Final answer
    x = 10,525.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.