Home / 39,579.40-59,286.30-18,537.40

Finding the Fourth Proportional to 39,579.40, 59,286.30 and 18,537.40

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Solution

The fourth proportional to 39,579.40, 59,286.30 and 18,537.40 is: 27,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,579.40 : 59,286.30 = 18,537.40 : x
  2. Step 2: Convert to fraction form
    39,579.40/59,286.30 = 18,537.40/x
  3. Step 3: Cross multiply
    39,579.40x = 59,286.30 × 18,537.40
  4. Step 4: Simplify right side
    39,579.40x = 1,099,013,857.62
  5. Step 5: Solve for x
    x = 1,099,013,857.62/39,579.40
  6. Step 6: Final answer
    x = 27,767.32

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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.