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Finding the Fourth Proportional to 29,395.36, 40,578.06 and 18,782.56

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Solution

The fourth proportional to 29,395.36, 40,578.06 and 18,782.56 is: 25,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,395.36 : 40,578.06 = 18,782.56 : x
  2. Step 2: Convert to fraction form
    29,395.36/40,578.06 = 18,782.56/x
  3. Step 3: Cross multiply
    29,395.36x = 40,578.06 × 18,782.56
  4. Step 4: Simplify right side
    29,395.36x = 762,159,846.63
  5. Step 5: Solve for x
    x = 762,159,846.63/29,395.36
  6. Step 6: Final answer
    x = 25,927.90

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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.