Home / 20,214.90-30,311.55-7,067.70

Finding the Fourth Proportional to 20,214.90, 30,311.55 and 7,067.70

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Solution

The fourth proportional to 20,214.90, 30,311.55 and 7,067.70 is: 10,597.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214.90 : 30,311.55 = 7,067.70 : x
  2. Step 2: Convert to fraction form
    20,214.90/30,311.55 = 7,067.70/x
  3. Step 3: Cross multiply
    20,214.90x = 30,311.55 × 7,067.70
  4. Step 4: Simplify right side
    20,214.90x = 214,232,941.94
  5. Step 5: Solve for x
    x = 214,232,941.94/20,214.90
  6. Step 6: Final answer
    x = 10,597.77

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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.