Home / 28,786.56-39,724.56-16,211.04

Finding the Fourth Proportional to 28,786.56, 39,724.56 and 16,211.04

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Solution

The fourth proportional to 28,786.56, 39,724.56 and 16,211.04 is: 22,370.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,786.56 : 39,724.56 = 16,211.04 : x
  2. Step 2: Convert to fraction form
    28,786.56/39,724.56 = 16,211.04/x
  3. Step 3: Cross multiply
    28,786.56x = 39,724.56 × 16,211.04
  4. Step 4: Simplify right side
    28,786.56x = 643,976,431.14
  5. Step 5: Solve for x
    x = 643,976,431.14/28,786.56
  6. Step 6: Final answer
    x = 22,370.73

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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.