Home / 39,768.44-59,662.42-19,787.36

Finding the Fourth Proportional to 39,768.44, 59,662.42 and 19,787.36

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Solution

The fourth proportional to 39,768.44, 59,662.42 and 19,787.36 is: 29,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,768.44 : 59,662.42 = 19,787.36 : x
  2. Step 2: Convert to fraction form
    39,768.44/59,662.42 = 19,787.36/x
  3. Step 3: Cross multiply
    39,768.44x = 59,662.42 × 19,787.36
  4. Step 4: Simplify right side
    39,768.44x = 1,180,561,783.01
  5. Step 5: Solve for x
    x = 1,180,561,783.01/39,768.44
  6. Step 6: Final answer
    x = 29,685.90

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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.