Home / 20,021.88-30,036.60-8,336.04

Finding the Fourth Proportional to 20,021.88, 30,036.60 and 8,336.04

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Solution

The fourth proportional to 20,021.88, 30,036.60 and 8,336.04 is: 12,505.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.88 : 30,036.60 = 8,336.04 : x
  2. Step 2: Convert to fraction form
    20,021.88/30,036.60 = 8,336.04/x
  3. Step 3: Cross multiply
    20,021.88x = 30,036.60 × 8,336.04
  4. Step 4: Simplify right side
    20,021.88x = 250,386,299.06
  5. Step 5: Solve for x
    x = 250,386,299.06/20,021.88
  6. Step 6: Final answer
    x = 12,505.63

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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.