Home / 31,229.69-46,862.85-11,521.98

Finding the Fourth Proportional to 31,229.69, 46,862.85 and 11,521.98

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Solution

The fourth proportional to 31,229.69, 46,862.85 and 11,521.98 is: 17,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,229.69 : 46,862.85 = 11,521.98 : x
  2. Step 2: Convert to fraction form
    31,229.69/46,862.85 = 11,521.98/x
  3. Step 3: Cross multiply
    31,229.69x = 46,862.85 × 11,521.98
  4. Step 4: Simplify right side
    31,229.69x = 539,952,820.44
  5. Step 5: Solve for x
    x = 539,952,820.44/31,229.69
  6. Step 6: Final answer
    x = 17,289.73

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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.