Home / 19,138.44-28,707.66-5,990.88

Finding the Fourth Proportional to 19,138.44, 28,707.66 and 5,990.88

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Solution

The fourth proportional to 19,138.44, 28,707.66 and 5,990.88 is: 8,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.44 : 28,707.66 = 5,990.88 : x
  2. Step 2: Convert to fraction form
    19,138.44/28,707.66 = 5,990.88/x
  3. Step 3: Cross multiply
    19,138.44x = 28,707.66 × 5,990.88
  4. Step 4: Simplify right side
    19,138.44x = 171,984,146.14
  5. Step 5: Solve for x
    x = 171,984,146.14/19,138.44
  6. Step 6: Final answer
    x = 8,986.32

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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.