Home / 39,087.54-58,643.73-12,786.30

Finding the Fourth Proportional to 39,087.54, 58,643.73 and 12,786.30

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Solution

The fourth proportional to 39,087.54, 58,643.73 and 12,786.30 is: 19,183.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,087.54 : 58,643.73 = 12,786.30 : x
  2. Step 2: Convert to fraction form
    39,087.54/58,643.73 = 12,786.30/x
  3. Step 3: Cross multiply
    39,087.54x = 58,643.73 × 12,786.30
  4. Step 4: Simplify right side
    39,087.54x = 749,836,324.90
  5. Step 5: Solve for x
    x = 749,836,324.90/39,087.54
  6. Step 6: Final answer
    x = 19,183.51

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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.