Home / 28,983.80-39,996.50-16,408.55

Finding the Fourth Proportional to 28,983.80, 39,996.50 and 16,408.55

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Solution

The fourth proportional to 28,983.80, 39,996.50 and 16,408.55 is: 22,643.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.80 : 39,996.50 = 16,408.55 : x
  2. Step 2: Convert to fraction form
    28,983.80/39,996.50 = 16,408.55/x
  3. Step 3: Cross multiply
    28,983.80x = 39,996.50 × 16,408.55
  4. Step 4: Simplify right side
    28,983.80x = 656,284,288.05
  5. Step 5: Solve for x
    x = 656,284,288.05/28,983.80
  6. Step 6: Final answer
    x = 22,643.15

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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.