Home / 31,257.31-46,880.91-11,545.15

Finding the Fourth Proportional to 31,257.31, 46,880.91 and 11,545.15

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Solution

The fourth proportional to 31,257.31, 46,880.91 and 11,545.15 is: 17,315.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.31 : 46,880.91 = 11,545.15 : x
  2. Step 2: Convert to fraction form
    31,257.31/46,880.91 = 11,545.15/x
  3. Step 3: Cross multiply
    31,257.31x = 46,880.91 × 11,545.15
  4. Step 4: Simplify right side
    31,257.31x = 541,247,138.09
  5. Step 5: Solve for x
    x = 541,247,138.09/31,257.31
  6. Step 6: Final answer
    x = 17,315.86

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1.5x scale

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.