Home / 20,486.66-30,730.59-8,006.18

Finding the Fourth Proportional to 20,486.66, 30,730.59 and 8,006.18

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Solution

The fourth proportional to 20,486.66, 30,730.59 and 8,006.18 is: 12,009.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486.66 : 30,730.59 = 8,006.18 : x
  2. Step 2: Convert to fraction form
    20,486.66/30,730.59 = 8,006.18/x
  3. Step 3: Cross multiply
    20,486.66x = 30,730.59 × 8,006.18
  4. Step 4: Simplify right side
    20,486.66x = 246,034,481.39
  5. Step 5: Solve for x
    x = 246,034,481.39/20,486.66
  6. Step 6: Final answer
    x = 12,009.50

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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.