Home / 28,905.73-43,357.68-13,099.19

Finding the Fourth Proportional to 28,905.73, 43,357.68 and 13,099.19

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Solution

The fourth proportional to 28,905.73, 43,357.68 and 13,099.19 is: 19,648.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.73 : 43,357.68 = 13,099.19 : x
  2. Step 2: Convert to fraction form
    28,905.73/43,357.68 = 13,099.19/x
  3. Step 3: Cross multiply
    28,905.73x = 43,357.68 × 13,099.19
  4. Step 4: Simplify right side
    28,905.73x = 567,950,515.38
  5. Step 5: Solve for x
    x = 567,950,515.38/28,905.73
  6. Step 6: Final answer
    x = 19,648.37

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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.