Home / 20,563.25-30,857.21-8,876.45

Finding the Fourth Proportional to 20,563.25, 30,857.21 and 8,876.45

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Solution

The fourth proportional to 20,563.25, 30,857.21 and 8,876.45 is: 13,319.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.25 : 30,857.21 = 8,876.45 : x
  2. Step 2: Convert to fraction form
    20,563.25/30,857.21 = 8,876.45/x
  3. Step 3: Cross multiply
    20,563.25x = 30,857.21 × 8,876.45
  4. Step 4: Simplify right side
    20,563.25x = 273,902,283.04
  5. Step 5: Solve for x
    x = 273,902,283.04/20,563.25
  6. Step 6: Final answer
    x = 13,319.99

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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.