Home / 20,193.12-30,290.70-7,714.23

Finding the Fourth Proportional to 20,193.12, 30,290.70 and 7,714.23

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Solution

The fourth proportional to 20,193.12, 30,290.70 and 7,714.23 is: 11,571.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.12 : 30,290.70 = 7,714.23 : x
  2. Step 2: Convert to fraction form
    20,193.12/30,290.70 = 7,714.23/x
  3. Step 3: Cross multiply
    20,193.12x = 30,290.70 × 7,714.23
  4. Step 4: Simplify right side
    20,193.12x = 233,669,426.66
  5. Step 5: Solve for x
    x = 233,669,426.66/20,193.12
  6. Step 6: Final answer
    x = 11,571.73

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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.