Home / 20,559.87-30,821.97-10,015.26

Finding the Fourth Proportional to 20,559.87, 30,821.97 and 10,015.26

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Solution

The fourth proportional to 20,559.87, 30,821.97 and 10,015.26 is: 15,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.87 : 30,821.97 = 10,015.26 : x
  2. Step 2: Convert to fraction form
    20,559.87/30,821.97 = 10,015.26/x
  3. Step 3: Cross multiply
    20,559.87x = 30,821.97 × 10,015.26
  4. Step 4: Simplify right side
    20,559.87x = 308,690,043.26
  5. Step 5: Solve for x
    x = 308,690,043.26/20,559.87
  6. Step 6: Final answer
    x = 15,014.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.