Home / 28,115.14-38,797.74-16,178.90

Finding the Fourth Proportional to 28,115.14, 38,797.74 and 16,178.90

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Solution

The fourth proportional to 28,115.14, 38,797.74 and 16,178.90 is: 22,326.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.14 : 38,797.74 = 16,178.90 : x
  2. Step 2: Convert to fraction form
    28,115.14/38,797.74 = 16,178.90/x
  3. Step 3: Cross multiply
    28,115.14x = 38,797.74 × 16,178.90
  4. Step 4: Simplify right side
    28,115.14x = 627,704,755.69
  5. Step 5: Solve for x
    x = 627,704,755.69/28,115.14
  6. Step 6: Final answer
    x = 22,326.22

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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.