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Finding the Fourth Proportional to 25,991.45, 38,983.12 and 7,269.51

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Solution

The fourth proportional to 25,991.45, 38,983.12 and 7,269.51 is: 10,903.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.45 : 38,983.12 = 7,269.51 : x
  2. Step 2: Convert to fraction form
    25,991.45/38,983.12 = 7,269.51/x
  3. Step 3: Cross multiply
    25,991.45x = 38,983.12 × 7,269.51
  4. Step 4: Simplify right side
    25,991.45x = 283,388,162.50
  5. Step 5: Solve for x
    x = 283,388,162.50/25,991.45
  6. Step 6: Final answer
    x = 10,903.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.