Home / 20,336.20-30,505.39-6,305.92

Finding the Fourth Proportional to 20,336.20, 30,505.39 and 6,305.92

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Solution

The fourth proportional to 20,336.20, 30,505.39 and 6,305.92 is: 9,459.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.20 : 30,505.39 = 6,305.92 : x
  2. Step 2: Convert to fraction form
    20,336.20/30,505.39 = 6,305.92/x
  3. Step 3: Cross multiply
    20,336.20x = 30,505.39 × 6,305.92
  4. Step 4: Simplify right side
    20,336.20x = 192,364,548.91
  5. Step 5: Solve for x
    x = 192,364,548.91/20,336.20
  6. Step 6: Final answer
    x = 9,459.22

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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.