Home / 28,986.60-43,469.65-13,787.38

Finding the Fourth Proportional to 28,986.60, 43,469.65 and 13,787.38

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Solution

The fourth proportional to 28,986.60, 43,469.65 and 13,787.38 is: 20,676.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,986.60 : 43,469.65 = 13,787.38 : x
  2. Step 2: Convert to fraction form
    28,986.60/43,469.65 = 13,787.38/x
  3. Step 3: Cross multiply
    28,986.60x = 43,469.65 × 13,787.38
  4. Step 4: Simplify right side
    28,986.60x = 599,332,583.02
  5. Step 5: Solve for x
    x = 599,332,583.02/28,986.60
  6. Step 6: Final answer
    x = 20,676.19

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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.