Home / 28,709.73-43,056.81-18,163.89

Finding the Fourth Proportional to 28,709.73, 43,056.81 and 18,163.89

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Solution

The fourth proportional to 28,709.73, 43,056.81 and 18,163.89 is: 27,240.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.73 : 43,056.81 = 18,163.89 : x
  2. Step 2: Convert to fraction form
    28,709.73/43,056.81 = 18,163.89/x
  3. Step 3: Cross multiply
    28,709.73x = 43,056.81 × 18,163.89
  4. Step 4: Simplify right side
    28,709.73x = 782,079,160.59
  5. Step 5: Solve for x
    x = 782,079,160.59/28,709.73
  6. Step 6: Final answer
    x = 27,240.91

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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.