Home / 28,616.10-39,490.21-16,040.85

Finding the Fourth Proportional to 28,616.10, 39,490.21 and 16,040.85

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Solution

The fourth proportional to 28,616.10, 39,490.21 and 16,040.85 is: 22,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,616.10 : 39,490.21 = 16,040.85 : x
  2. Step 2: Convert to fraction form
    28,616.10/39,490.21 = 16,040.85/x
  3. Step 3: Cross multiply
    28,616.10x = 39,490.21 × 16,040.85
  4. Step 4: Simplify right side
    28,616.10x = 633,456,518.97
  5. Step 5: Solve for x
    x = 633,456,518.97/28,616.10
  6. Step 6: Final answer
    x = 22,136.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.