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Finding the Fourth Proportional to 25,075.44, 37,612.80 and 8,439.12

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Solution

The fourth proportional to 25,075.44, 37,612.80 and 8,439.12 is: 12,658.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,075.44 : 37,612.80 = 8,439.12 : x
  2. Step 2: Convert to fraction form
    25,075.44/37,612.80 = 8,439.12/x
  3. Step 3: Cross multiply
    25,075.44x = 37,612.80 × 8,439.12
  4. Step 4: Simplify right side
    25,075.44x = 317,418,932.74
  5. Step 5: Solve for x
    x = 317,418,932.74/25,075.44
  6. Step 6: Final answer
    x = 12,658.56

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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.