Home / 28,558.53-39,410.82-15,983.28

Finding the Fourth Proportional to 28,558.53, 39,410.82 and 15,983.28

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Solution

The fourth proportional to 28,558.53, 39,410.82 and 15,983.28 is: 22,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.53 : 39,410.82 = 15,983.28 : x
  2. Step 2: Convert to fraction form
    28,558.53/39,410.82 = 15,983.28/x
  3. Step 3: Cross multiply
    28,558.53x = 39,410.82 × 15,983.28
  4. Step 4: Simplify right side
    28,558.53x = 629,914,171.09
  5. Step 5: Solve for x
    x = 629,914,171.09/28,558.53
  6. Step 6: Final answer
    x = 22,056.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.