Home / 20,016.87-30,015.38-11,698.98

Finding the Fourth Proportional to 20,016.87, 30,015.38 and 11,698.98

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Solution

The fourth proportional to 20,016.87, 30,015.38 and 11,698.98 is: 17,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,016.87 : 30,015.38 = 11,698.98 : x
  2. Step 2: Convert to fraction form
    20,016.87/30,015.38 = 11,698.98/x
  3. Step 3: Cross multiply
    20,016.87x = 30,015.38 × 11,698.98
  4. Step 4: Simplify right side
    20,016.87x = 351,149,271.82
  5. Step 5: Solve for x
    x = 351,149,271.82/20,016.87
  6. Step 6: Final answer
    x = 17,542.67

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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.