Home / 20,273.34-30,409.80-6,422.34

Finding the Fourth Proportional to 20,273.34, 30,409.80 and 6,422.34

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Solution

The fourth proportional to 20,273.34, 30,409.80 and 6,422.34 is: 9,633.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.34 : 30,409.80 = 6,422.34 : x
  2. Step 2: Convert to fraction form
    20,273.34/30,409.80 = 6,422.34/x
  3. Step 3: Cross multiply
    20,273.34x = 30,409.80 × 6,422.34
  4. Step 4: Simplify right side
    20,273.34x = 195,302,074.93
  5. Step 5: Solve for x
    x = 195,302,074.93/20,273.34
  6. Step 6: Final answer
    x = 9,633.44

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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.