Home / 20,077.57-30,120.44-6,928.23

Finding the Fourth Proportional to 20,077.57, 30,120.44 and 6,928.23

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Solution

The fourth proportional to 20,077.57, 30,120.44 and 6,928.23 is: 10,393.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.57 : 30,120.44 = 6,928.23 : x
  2. Step 2: Convert to fraction form
    20,077.57/30,120.44 = 6,928.23/x
  3. Step 3: Cross multiply
    20,077.57x = 30,120.44 × 6,928.23
  4. Step 4: Simplify right side
    20,077.57x = 208,681,336.02
  5. Step 5: Solve for x
    x = 208,681,336.02/20,077.57
  6. Step 6: Final answer
    x = 10,393.75

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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.