Home / 20,466.25-30,699.39-8,162.89

Finding the Fourth Proportional to 20,466.25, 30,699.39 and 8,162.89

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Solution

The fourth proportional to 20,466.25, 30,699.39 and 8,162.89 is: 12,244.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.25 : 30,699.39 = 8,162.89 : x
  2. Step 2: Convert to fraction form
    20,466.25/30,699.39 = 8,162.89/x
  3. Step 3: Cross multiply
    20,466.25x = 30,699.39 × 8,162.89
  4. Step 4: Simplify right side
    20,466.25x = 250,595,743.64
  5. Step 5: Solve for x
    x = 250,595,743.64/20,466.25
  6. Step 6: Final answer
    x = 12,244.34

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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.