Home / 20,573.83-30,861.89-5,781.59

Finding the Fourth Proportional to 20,573.83, 30,861.89 and 5,781.59

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Solution

The fourth proportional to 20,573.83, 30,861.89 and 5,781.59 is: 8,672.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.83 : 30,861.89 = 5,781.59 : x
  2. Step 2: Convert to fraction form
    20,573.83/30,861.89 = 5,781.59/x
  3. Step 3: Cross multiply
    20,573.83x = 30,861.89 × 5,781.59
  4. Step 4: Simplify right side
    20,573.83x = 178,430,954.92
  5. Step 5: Solve for x
    x = 178,430,954.92/20,573.83
  6. Step 6: Final answer
    x = 8,672.71

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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.