Home / 30,663.68-42,317.39-18,725.09

Finding the Fourth Proportional to 30,663.68, 42,317.39 and 18,725.09

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Solution

The fourth proportional to 30,663.68, 42,317.39 and 18,725.09 is: 25,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,663.68 : 42,317.39 = 18,725.09 : x
  2. Step 2: Convert to fraction form
    30,663.68/42,317.39 = 18,725.09/x
  3. Step 3: Cross multiply
    30,663.68x = 42,317.39 × 18,725.09
  4. Step 4: Simplify right side
    30,663.68x = 792,396,936.32
  5. Step 5: Solve for x
    x = 792,396,936.32/30,663.68
  6. Step 6: Final answer
    x = 25,841.55

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