Home / 28,996.39-43,511.31-15,669.42

Finding the Fourth Proportional to 28,996.39, 43,511.31 and 15,669.42

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Solution

The fourth proportional to 28,996.39, 43,511.31 and 15,669.42 is: 23,513.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996.39 : 43,511.31 = 15,669.42 : x
  2. Step 2: Convert to fraction form
    28,996.39/43,511.31 = 15,669.42/x
  3. Step 3: Cross multiply
    28,996.39x = 43,511.31 × 15,669.42
  4. Step 4: Simplify right side
    28,996.39x = 681,796,991.14
  5. Step 5: Solve for x
    x = 681,796,991.14/28,996.39
  6. Step 6: Final answer
    x = 23,513.17

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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.