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Finding the Fourth Proportional to 24,397.60, 33,610.80 and 20,120.80

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Solution

The fourth proportional to 24,397.60, 33,610.80 and 20,120.80 is: 27,718.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,397.60 : 33,610.80 = 20,120.80 : x
  2. Step 2: Convert to fraction form
    24,397.60/33,610.80 = 20,120.80/x
  3. Step 3: Cross multiply
    24,397.60x = 33,610.80 × 20,120.80
  4. Step 4: Simplify right side
    24,397.60x = 676,276,184.64
  5. Step 5: Solve for x
    x = 676,276,184.64/24,397.60
  6. Step 6: Final answer
    x = 27,718.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.