Home / 20,279.14-28,004.44-19,174.68

Finding the Fourth Proportional to 20,279.14, 28,004.44 and 19,174.68

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Solution

The fourth proportional to 20,279.14, 28,004.44 and 19,174.68 is: 26,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.14 : 28,004.44 = 19,174.68 : x
  2. Step 2: Convert to fraction form
    20,279.14/28,004.44 = 19,174.68/x
  3. Step 3: Cross multiply
    20,279.14x = 28,004.44 × 19,174.68
  4. Step 4: Simplify right side
    20,279.14x = 536,976,175.58
  5. Step 5: Solve for x
    x = 536,976,175.58/20,279.14
  6. Step 6: Final answer
    x = 26,479.24

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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.