Home / 28,816.88-39,800.09-19,369.04

Finding the Fourth Proportional to 28,816.88, 39,800.09 and 19,369.04

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Solution

The fourth proportional to 28,816.88, 39,800.09 and 19,369.04 is: 26,751.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816.88 : 39,800.09 = 19,369.04 : x
  2. Step 2: Convert to fraction form
    28,816.88/39,800.09 = 19,369.04/x
  3. Step 3: Cross multiply
    28,816.88x = 39,800.09 × 19,369.04
  4. Step 4: Simplify right side
    28,816.88x = 770,889,384.64
  5. Step 5: Solve for x
    x = 770,889,384.64/28,816.88
  6. Step 6: Final answer
    x = 26,751.32

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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.