Home / 20,286.08-30,430.22-6,255.77

Finding the Fourth Proportional to 20,286.08, 30,430.22 and 6,255.77

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Solution

The fourth proportional to 20,286.08, 30,430.22 and 6,255.77 is: 9,383.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.08 : 30,430.22 = 6,255.77 : x
  2. Step 2: Convert to fraction form
    20,286.08/30,430.22 = 6,255.77/x
  3. Step 3: Cross multiply
    20,286.08x = 30,430.22 × 6,255.77
  4. Step 4: Simplify right side
    20,286.08x = 190,364,273.94
  5. Step 5: Solve for x
    x = 190,364,273.94/20,286.08
  6. Step 6: Final answer
    x = 9,383.99

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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.