Home / 28,105.00-38,718.94-19,591.65

Finding the Fourth Proportional to 28,105.00, 38,718.94 and 19,591.65

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Solution

The fourth proportional to 28,105.00, 38,718.94 and 19,591.65 is: 26,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105.00 : 38,718.94 = 19,591.65 : x
  2. Step 2: Convert to fraction form
    28,105.00/38,718.94 = 19,591.65/x
  3. Step 3: Cross multiply
    28,105.00x = 38,718.94 × 19,591.65
  4. Step 4: Simplify right side
    28,105.00x = 758,567,744.61
  5. Step 5: Solve for x
    x = 758,567,744.61/28,105.00
  6. Step 6: Final answer
    x = 26,990.49

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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.