Home / 25,815.84-38,724.72-8,283.36

Finding the Fourth Proportional to 25,815.84, 38,724.72 and 8,283.36

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Solution

The fourth proportional to 25,815.84, 38,724.72 and 8,283.36 is: 12,425.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815.84 : 38,724.72 = 8,283.36 : x
  2. Step 2: Convert to fraction form
    25,815.84/38,724.72 = 8,283.36/x
  3. Step 3: Cross multiply
    25,815.84x = 38,724.72 × 8,283.36
  4. Step 4: Simplify right side
    25,815.84x = 320,770,796.66
  5. Step 5: Solve for x
    x = 320,770,796.66/25,815.84
  6. Step 6: Final answer
    x = 12,425.35

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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.