Home / 20,239.72-30,356.84-5,449.53

Finding the Fourth Proportional to 20,239.72, 30,356.84 and 5,449.53

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Solution

The fourth proportional to 20,239.72, 30,356.84 and 5,449.53 is: 8,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.72 : 30,356.84 = 5,449.53 : x
  2. Step 2: Convert to fraction form
    20,239.72/30,356.84 = 5,449.53/x
  3. Step 3: Cross multiply
    20,239.72x = 30,356.84 × 5,449.53
  4. Step 4: Simplify right side
    20,239.72x = 165,430,466.99
  5. Step 5: Solve for x
    x = 165,430,466.99/20,239.72
  6. Step 6: Final answer
    x = 8,173.55

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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.