Home / 20,021.45-29,999.19-6,866.60

Finding the Fourth Proportional to 20,021.45, 29,999.19 and 6,866.60

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Solution

The fourth proportional to 20,021.45, 29,999.19 and 6,866.60 is: 10,288.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.45 : 29,999.19 = 6,866.60 : x
  2. Step 2: Convert to fraction form
    20,021.45/29,999.19 = 6,866.60/x
  3. Step 3: Cross multiply
    20,021.45x = 29,999.19 × 6,866.60
  4. Step 4: Simplify right side
    20,021.45x = 205,992,438.05
  5. Step 5: Solve for x
    x = 205,992,438.05/20,021.45
  6. Step 6: Final answer
    x = 10,288.59

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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.