Home / 18,019.62-27,029.34-4,871.94

Finding the Fourth Proportional to 18,019.62, 27,029.34 and 4,871.94

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Solution

The fourth proportional to 18,019.62, 27,029.34 and 4,871.94 is: 7,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.62 : 27,029.34 = 4,871.94 : x
  2. Step 2: Convert to fraction form
    18,019.62/27,029.34 = 4,871.94/x
  3. Step 3: Cross multiply
    18,019.62x = 27,029.34 × 4,871.94
  4. Step 4: Simplify right side
    18,019.62x = 131,685,322.72
  5. Step 5: Solve for x
    x = 131,685,322.72/18,019.62
  6. Step 6: Final answer
    x = 7,307.89

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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.