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Finding the Fourth Proportional to 24,720.80, 37,077.60 and 7,188.80

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Solution

The fourth proportional to 24,720.80, 37,077.60 and 7,188.80 is: 10,782.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,720.80 : 37,077.60 = 7,188.80 : x
  2. Step 2: Convert to fraction form
    24,720.80/37,077.60 = 7,188.80/x
  3. Step 3: Cross multiply
    24,720.80x = 37,077.60 × 7,188.80
  4. Step 4: Simplify right side
    24,720.80x = 266,543,450.88
  5. Step 5: Solve for x
    x = 266,543,450.88/24,720.80
  6. Step 6: Final answer
    x = 10,782.15

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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.