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Finding the Fourth Proportional to 20,573.34, 30,865.41 and 8,883.78

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Solution

The fourth proportional to 20,573.34, 30,865.41 and 8,883.78 is: 13,328.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.34 : 30,865.41 = 8,883.78 : x
  2. Step 2: Convert to fraction form
    20,573.34/30,865.41 = 8,883.78/x
  3. Step 3: Cross multiply
    20,573.34x = 30,865.41 × 8,883.78
  4. Step 4: Simplify right side
    20,573.34x = 274,201,512.05
  5. Step 5: Solve for x
    x = 274,201,512.05/20,573.34
  6. Step 6: Final answer
    x = 13,328.00

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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.