Home / 28,966-43,352.57-21,907.12

Finding the Fourth Proportional to 28,966, 43,352.57 and 21,907.12

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Solution

The fourth proportional to 28,966, 43,352.57 and 21,907.12 is: 32,787.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966 : 43,352.57 = 21,907.12 : x
  2. Step 2: Convert to fraction form
    28,966/43,352.57 = 21,907.12/x
  3. Step 3: Cross multiply
    28,966x = 43,352.57 × 21,907.12
  4. Step 4: Simplify right side
    28,966x = 949,729,843.76
  5. Step 5: Solve for x
    x = 949,729,843.76/28,966
  6. Step 6: Final answer
    x = 32,787.75

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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.