Home / 31,257.16-46,885.95-12,789.16

Finding the Fourth Proportional to 31,257.16, 46,885.95 and 12,789.16

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Solution

The fourth proportional to 31,257.16, 46,885.95 and 12,789.16 is: 19,183.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.16 : 46,885.95 = 12,789.16 : x
  2. Step 2: Convert to fraction form
    31,257.16/46,885.95 = 12,789.16/x
  3. Step 3: Cross multiply
    31,257.16x = 46,885.95 × 12,789.16
  4. Step 4: Simplify right side
    31,257.16x = 599,631,916.30
  5. Step 5: Solve for x
    x = 599,631,916.30/31,257.16
  6. Step 6: Final answer
    x = 19,183.83

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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.