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Finding the Fourth Proportional to 20,467.50, 30,701.25 and 6,616.50

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Solution

The fourth proportional to 20,467.50, 30,701.25 and 6,616.50 is: 9,924.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.50 : 30,701.25 = 6,616.50 : x
  2. Step 2: Convert to fraction form
    20,467.50/30,701.25 = 6,616.50/x
  3. Step 3: Cross multiply
    20,467.50x = 30,701.25 × 6,616.50
  4. Step 4: Simplify right side
    20,467.50x = 203,134,820.63
  5. Step 5: Solve for x
    x = 203,134,820.63/20,467.50
  6. Step 6: Final answer
    x = 9,924.75

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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.