Home / 20,054.36-30,091.80-8,216.76

Finding the Fourth Proportional to 20,054.36, 30,091.80 and 8,216.76

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Solution

The fourth proportional to 20,054.36, 30,091.80 and 8,216.76 is: 12,329.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.36 : 30,091.80 = 8,216.76 : x
  2. Step 2: Convert to fraction form
    20,054.36/30,091.80 = 8,216.76/x
  3. Step 3: Cross multiply
    20,054.36x = 30,091.80 × 8,216.76
  4. Step 4: Simplify right side
    20,054.36x = 247,257,098.57
  5. Step 5: Solve for x
    x = 247,257,098.57/20,054.36
  6. Step 6: Final answer
    x = 12,329.34

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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.