Home / 20,467.23-30,701.45-7,986.75

Finding the Fourth Proportional to 20,467.23, 30,701.45 and 7,986.75

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Solution

The fourth proportional to 20,467.23, 30,701.45 and 7,986.75 is: 11,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.23 : 30,701.45 = 7,986.75 : x
  2. Step 2: Convert to fraction form
    20,467.23/30,701.45 = 7,986.75/x
  3. Step 3: Cross multiply
    20,467.23x = 30,701.45 × 7,986.75
  4. Step 4: Simplify right side
    20,467.23x = 245,204,805.79
  5. Step 5: Solve for x
    x = 245,204,805.79/20,467.23
  6. Step 6: Final answer
    x = 11,980.36

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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.