Home / 20,441.90-28,323.41-19,999.04

Finding the Fourth Proportional to 20,441.90, 28,323.41 and 19,999.04

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Solution

The fourth proportional to 20,441.90, 28,323.41 and 19,999.04 is: 27,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,441.90 : 28,323.41 = 19,999.04 : x
  2. Step 2: Convert to fraction form
    20,441.90/28,323.41 = 19,999.04/x
  3. Step 3: Cross multiply
    20,441.90x = 28,323.41 × 19,999.04
  4. Step 4: Simplify right side
    20,441.90x = 566,440,767.91
  5. Step 5: Solve for x
    x = 566,440,767.91/20,441.90
  6. Step 6: Final answer
    x = 27,709.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.