Home / 20,583.99-28,405.62-11,631.33

Finding the Fourth Proportional to 20,583.99, 28,405.62 and 11,631.33

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Solution

The fourth proportional to 20,583.99, 28,405.62 and 11,631.33 is: 16,051.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.99 : 28,405.62 = 11,631.33 : x
  2. Step 2: Convert to fraction form
    20,583.99/28,405.62 = 11,631.33/x
  3. Step 3: Cross multiply
    20,583.99x = 28,405.62 × 11,631.33
  4. Step 4: Simplify right side
    20,583.99x = 330,395,140.07
  5. Step 5: Solve for x
    x = 330,395,140.07/20,583.99
  6. Step 6: Final answer
    x = 16,051.07

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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.