Home / 19,090.58-28,616.30-8,003.68

Finding the Fourth Proportional to 19,090.58, 28,616.30 and 8,003.68

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Solution

The fourth proportional to 19,090.58, 28,616.30 and 8,003.68 is: 11,997.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.58 : 28,616.30 = 8,003.68 : x
  2. Step 2: Convert to fraction form
    19,090.58/28,616.30 = 8,003.68/x
  3. Step 3: Cross multiply
    19,090.58x = 28,616.30 × 8,003.68
  4. Step 4: Simplify right side
    19,090.58x = 229,035,707.98
  5. Step 5: Solve for x
    x = 229,035,707.98/19,090.58
  6. Step 6: Final answer
    x = 11,997.32

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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.