Home / 20,073.42-30,110.14-8,380.26

Finding the Fourth Proportional to 20,073.42, 30,110.14 and 8,380.26

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Solution

The fourth proportional to 20,073.42, 30,110.14 and 8,380.26 is: 12,570.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.42 : 30,110.14 = 8,380.26 : x
  2. Step 2: Convert to fraction form
    20,073.42/30,110.14 = 8,380.26/x
  3. Step 3: Cross multiply
    20,073.42x = 30,110.14 × 8,380.26
  4. Step 4: Simplify right side
    20,073.42x = 252,330,801.84
  5. Step 5: Solve for x
    x = 252,330,801.84/20,073.42
  6. Step 6: Final answer
    x = 12,570.39

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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.