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Finding the Fourth Proportional to 28,808.60, 43,172.40 and 22,895.60

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Solution

The fourth proportional to 28,808.60, 43,172.40 and 22,895.60 is: 34,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.60 : 43,172.40 = 22,895.60 : x
  2. Step 2: Convert to fraction form
    28,808.60/43,172.40 = 22,895.60/x
  3. Step 3: Cross multiply
    28,808.60x = 43,172.40 × 22,895.60
  4. Step 4: Simplify right side
    28,808.60x = 988,458,001.44
  5. Step 5: Solve for x
    x = 988,458,001.44/28,808.60
  6. Step 6: Final answer
    x = 34,311.21

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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.