Home / 19,083.12-26,321.40-18,440.88

Finding the Fourth Proportional to 19,083.12, 26,321.40 and 18,440.88

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Solution

The fourth proportional to 19,083.12, 26,321.40 and 18,440.88 is: 25,435.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,083.12 : 26,321.40 = 18,440.88 : x
  2. Step 2: Convert to fraction form
    19,083.12/26,321.40 = 18,440.88/x
  3. Step 3: Cross multiply
    19,083.12x = 26,321.40 × 18,440.88
  4. Step 4: Simplify right side
    19,083.12x = 485,389,778.83
  5. Step 5: Solve for x
    x = 485,389,778.83/19,083.12
  6. Step 6: Final answer
    x = 25,435.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.