Home / 20,395.08-28,148.58-12,016.44

Finding the Fourth Proportional to 20,395.08, 28,148.58 and 12,016.44

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Solution

The fourth proportional to 20,395.08, 28,148.58 and 12,016.44 is: 16,584.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.08 : 28,148.58 = 12,016.44 : x
  2. Step 2: Convert to fraction form
    20,395.08/28,148.58 = 12,016.44/x
  3. Step 3: Cross multiply
    20,395.08x = 28,148.58 × 12,016.44
  4. Step 4: Simplify right side
    20,395.08x = 338,245,722.66
  5. Step 5: Solve for x
    x = 338,245,722.66/20,395.08
  6. Step 6: Final answer
    x = 16,584.67

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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.