Home / 20,571.90-30,858.60-10,573.97

Finding the Fourth Proportional to 20,571.90, 30,858.60 and 10,573.97

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Solution

The fourth proportional to 20,571.90, 30,858.60 and 10,573.97 is: 15,861.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.90 : 30,858.60 = 10,573.97 : x
  2. Step 2: Convert to fraction form
    20,571.90/30,858.60 = 10,573.97/x
  3. Step 3: Cross multiply
    20,571.90x = 30,858.60 × 10,573.97
  4. Step 4: Simplify right side
    20,571.90x = 326,297,756.35
  5. Step 5: Solve for x
    x = 326,297,756.35/20,571.90
  6. Step 6: Final answer
    x = 15,861.33

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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.