Home / 39,679.39-59,529.09-18,321.79

Finding the Fourth Proportional to 39,679.39, 59,529.09 and 18,321.79

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Solution

The fourth proportional to 39,679.39, 59,529.09 and 18,321.79 is: 27,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,679.39 : 59,529.09 = 18,321.79 : x
  2. Step 2: Convert to fraction form
    39,679.39/59,529.09 = 18,321.79/x
  3. Step 3: Cross multiply
    39,679.39x = 59,529.09 × 18,321.79
  4. Step 4: Simplify right side
    39,679.39x = 1,090,679,485.87
  5. Step 5: Solve for x
    x = 1,090,679,485.87/39,679.39
  6. Step 6: Final answer
    x = 27,487.30

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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.