Home / 19,211.94-28,817.91-5,172

Finding the Fourth Proportional to 19,211.94, 28,817.91 and 5,172

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Solution

The fourth proportional to 19,211.94, 28,817.91 and 5,172 is: 7,758.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.94 : 28,817.91 = 5,172 : x
  2. Step 2: Convert to fraction form
    19,211.94/28,817.91 = 5,172/x
  3. Step 3: Cross multiply
    19,211.94x = 28,817.91 × 5,172
  4. Step 4: Simplify right side
    19,211.94x = 149,046,230.52
  5. Step 5: Solve for x
    x = 149,046,230.52/19,211.94
  6. Step 6: Final answer
    x = 7,758.00

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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.