Home / 47,429.74-71,144.61-12,369.09

Finding the Fourth Proportional to 47,429.74, 71,144.61 and 12,369.09

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Solution

The fourth proportional to 47,429.74, 71,144.61 and 12,369.09 is: 18,553.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,429.74 : 71,144.61 = 12,369.09 : x
  2. Step 2: Convert to fraction form
    47,429.74/71,144.61 = 12,369.09/x
  3. Step 3: Cross multiply
    47,429.74x = 71,144.61 × 12,369.09
  4. Step 4: Simplify right side
    47,429.74x = 879,994,084.10
  5. Step 5: Solve for x
    x = 879,994,084.10/47,429.74
  6. Step 6: Final answer
    x = 18,553.64

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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.