Home / 38,787.22-58,183.14-12,138.19

Finding the Fourth Proportional to 38,787.22, 58,183.14 and 12,138.19

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Solution

The fourth proportional to 38,787.22, 58,183.14 and 12,138.19 is: 18,208.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,787.22 : 58,183.14 = 12,138.19 : x
  2. Step 2: Convert to fraction form
    38,787.22/58,183.14 = 12,138.19/x
  3. Step 3: Cross multiply
    38,787.22x = 58,183.14 × 12,138.19
  4. Step 4: Simplify right side
    38,787.22x = 706,238,008.12
  5. Step 5: Solve for x
    x = 706,238,008.12/38,787.22
  6. Step 6: Final answer
    x = 18,208.01

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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.