Home / 19,965.56-29,954.82-9,578.12

Finding the Fourth Proportional to 19,965.56, 29,954.82 and 9,578.12

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Solution

The fourth proportional to 19,965.56, 29,954.82 and 9,578.12 is: 14,370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.56 : 29,954.82 = 9,578.12 : x
  2. Step 2: Convert to fraction form
    19,965.56/29,954.82 = 9,578.12/x
  3. Step 3: Cross multiply
    19,965.56x = 29,954.82 × 9,578.12
  4. Step 4: Simplify right side
    19,965.56x = 286,910,860.54
  5. Step 5: Solve for x
    x = 286,910,860.54/19,965.56
  6. Step 6: Final answer
    x = 14,370.29

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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.