Home / 19,422.16-29,139.18-8,183.32

Finding the Fourth Proportional to 19,422.16, 29,139.18 and 8,183.32

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Solution

The fourth proportional to 19,422.16, 29,139.18 and 8,183.32 is: 12,277.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.16 : 29,139.18 = 8,183.32 : x
  2. Step 2: Convert to fraction form
    19,422.16/29,139.18 = 8,183.32/x
  3. Step 3: Cross multiply
    19,422.16x = 29,139.18 × 8,183.32
  4. Step 4: Simplify right side
    19,422.16x = 238,455,234.48
  5. Step 5: Solve for x
    x = 238,455,234.48/19,422.16
  6. Step 6: Final answer
    x = 12,277.48

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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.