Home / 31,579.68-47,372.04-18,433.38

Finding the Fourth Proportional to 31,579.68, 47,372.04 and 18,433.38

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Solution

The fourth proportional to 31,579.68, 47,372.04 and 18,433.38 is: 27,651.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,579.68 : 47,372.04 = 18,433.38 : x
  2. Step 2: Convert to fraction form
    31,579.68/47,372.04 = 18,433.38/x
  3. Step 3: Cross multiply
    31,579.68x = 47,372.04 × 18,433.38
  4. Step 4: Simplify right side
    31,579.68x = 873,226,814.70
  5. Step 5: Solve for x
    x = 873,226,814.70/31,579.68
  6. Step 6: Final answer
    x = 27,651.54

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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.