Home / 28,716.77-39,623.33-16,777.80

Finding the Fourth Proportional to 28,716.77, 39,623.33 and 16,777.80

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Solution

The fourth proportional to 28,716.77, 39,623.33 and 16,777.80 is: 23,149.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.77 : 39,623.33 = 16,777.80 : x
  2. Step 2: Convert to fraction form
    28,716.77/39,623.33 = 16,777.80/x
  3. Step 3: Cross multiply
    28,716.77x = 39,623.33 × 16,777.80
  4. Step 4: Simplify right side
    28,716.77x = 664,792,024.07
  5. Step 5: Solve for x
    x = 664,792,024.07/28,716.77
  6. Step 6: Final answer
    x = 23,149.96

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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.