Home / 28,787.28-43,193.88-15,619.92

Finding the Fourth Proportional to 28,787.28, 43,193.88 and 15,619.92

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Solution

The fourth proportional to 28,787.28, 43,193.88 and 15,619.92 is: 23,436.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787.28 : 43,193.88 = 15,619.92 : x
  2. Step 2: Convert to fraction form
    28,787.28/43,193.88 = 15,619.92/x
  3. Step 3: Cross multiply
    28,787.28x = 43,193.88 × 15,619.92
  4. Step 4: Simplify right side
    28,787.28x = 674,684,950.09
  5. Step 5: Solve for x
    x = 674,684,950.09/28,787.28
  6. Step 6: Final answer
    x = 23,436.91

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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.