Home / 20,237.88-30,356.68-5,445.56

Finding the Fourth Proportional to 20,237.88, 30,356.68 and 5,445.56

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Solution

The fourth proportional to 20,237.88, 30,356.68 and 5,445.56 is: 8,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.88 : 30,356.68 = 5,445.56 : x
  2. Step 2: Convert to fraction form
    20,237.88/30,356.68 = 5,445.56/x
  3. Step 3: Cross multiply
    20,237.88x = 30,356.68 × 5,445.56
  4. Step 4: Simplify right side
    20,237.88x = 165,309,122.34
  5. Step 5: Solve for x
    x = 165,309,122.34/20,237.88
  6. Step 6: Final answer
    x = 8,168.30

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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.