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Finding the Fourth Proportional to 20,255.00, 30,347.63 and 18,200.60

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Solution

The fourth proportional to 20,255.00, 30,347.63 and 18,200.60 is: 27,269.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.00 : 30,347.63 = 18,200.60 : x
  2. Step 2: Convert to fraction form
    20,255.00/30,347.63 = 18,200.60/x
  3. Step 3: Cross multiply
    20,255.00x = 30,347.63 × 18,200.60
  4. Step 4: Simplify right side
    20,255.00x = 552,345,013.89
  5. Step 5: Solve for x
    x = 552,345,013.89/20,255.00
  6. Step 6: Final answer
    x = 27,269.57

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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.