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Finding the Fourth Proportional to 20,539.08, 30,808.61 and 8,064.97

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Solution

The fourth proportional to 20,539.08, 30,808.61 and 8,064.97 is: 12,097.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,539.08 : 30,808.61 = 8,064.97 : x
  2. Step 2: Convert to fraction form
    20,539.08/30,808.61 = 8,064.97/x
  3. Step 3: Cross multiply
    20,539.08x = 30,808.61 × 8,064.97
  4. Step 4: Simplify right side
    20,539.08x = 248,470,515.39
  5. Step 5: Solve for x
    x = 248,470,515.39/20,539.08
  6. Step 6: Final answer
    x = 12,097.45

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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.