Home / 19,090.42-28,635.62-5,239.42

Finding the Fourth Proportional to 19,090.42, 28,635.62 and 5,239.42

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Solution

The fourth proportional to 19,090.42, 28,635.62 and 5,239.42 is: 7,859.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.42 : 28,635.62 = 5,239.42 : x
  2. Step 2: Convert to fraction form
    19,090.42/28,635.62 = 5,239.42/x
  3. Step 3: Cross multiply
    19,090.42x = 28,635.62 × 5,239.42
  4. Step 4: Simplify right side
    19,090.42x = 150,033,942.35
  5. Step 5: Solve for x
    x = 150,033,942.35/19,090.42
  6. Step 6: Final answer
    x = 7,859.12

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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.