Home / 28,787.76-43,179.56-9,071.96

Finding the Fourth Proportional to 28,787.76, 43,179.56 and 9,071.96

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Solution

The fourth proportional to 28,787.76, 43,179.56 and 9,071.96 is: 13,607.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787.76 : 43,179.56 = 9,071.96 : x
  2. Step 2: Convert to fraction form
    28,787.76/43,179.56 = 9,071.96/x
  3. Step 3: Cross multiply
    28,787.76x = 43,179.56 × 9,071.96
  4. Step 4: Simplify right side
    28,787.76x = 391,723,241.14
  5. Step 5: Solve for x
    x = 391,723,241.14/28,787.76
  6. Step 6: Final answer
    x = 13,607.28

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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.