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Finding the Fourth Proportional to 28,712.46, 43,042.74 and 10,240.14

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Solution

The fourth proportional to 28,712.46, 43,042.74 and 10,240.14 is: 15,350.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.46 : 43,042.74 = 10,240.14 : x
  2. Step 2: Convert to fraction form
    28,712.46/43,042.74 = 10,240.14/x
  3. Step 3: Cross multiply
    28,712.46x = 43,042.74 × 10,240.14
  4. Step 4: Simplify right side
    28,712.46x = 440,763,683.58
  5. Step 5: Solve for x
    x = 440,763,683.58/28,712.46
  6. Step 6: Final answer
    x = 15,350.96

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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.