Home / 38,637.70-57,963.10-11,977.60

Finding the Fourth Proportional to 38,637.70, 57,963.10 and 11,977.60

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Solution

The fourth proportional to 38,637.70, 57,963.10 and 11,977.60 is: 17,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,637.70 : 57,963.10 = 11,977.60 : x
  2. Step 2: Convert to fraction form
    38,637.70/57,963.10 = 11,977.60/x
  3. Step 3: Cross multiply
    38,637.70x = 57,963.10 × 11,977.60
  4. Step 4: Simplify right side
    38,637.70x = 694,258,826.56
  5. Step 5: Solve for x
    x = 694,258,826.56/38,637.70
  6. Step 6: Final answer
    x = 17,968.43

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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.