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Finding the Fourth Proportional to 20,051.25, 30,076.88 and 6,200.25

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Solution

The fourth proportional to 20,051.25, 30,076.88 and 6,200.25 is: 9,300.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.25 : 30,076.88 = 6,200.25 : x
  2. Step 2: Convert to fraction form
    20,051.25/30,076.88 = 6,200.25/x
  3. Step 3: Cross multiply
    20,051.25x = 30,076.88 × 6,200.25
  4. Step 4: Simplify right side
    20,051.25x = 186,484,144.22
  5. Step 5: Solve for x
    x = 186,484,144.22/20,051.25
  6. Step 6: Final answer
    x = 9,300.38

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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.