Home / 19,138.37-28,703.45-5,989.04

Finding the Fourth Proportional to 19,138.37, 28,703.45 and 5,989.04

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Solution

The fourth proportional to 19,138.37, 28,703.45 and 5,989.04 is: 8,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.37 : 28,703.45 = 5,989.04 : x
  2. Step 2: Convert to fraction form
    19,138.37/28,703.45 = 5,989.04/x
  3. Step 3: Cross multiply
    19,138.37x = 28,703.45 × 5,989.04
  4. Step 4: Simplify right side
    19,138.37x = 171,905,936.73
  5. Step 5: Solve for x
    x = 171,905,936.73/19,138.37
  6. Step 6: Final answer
    x = 8,982.27

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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.