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Finding the Fourth Proportional to 30,422.66, 41,983.08 and 16,993.87

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Solution

The fourth proportional to 30,422.66, 41,983.08 and 16,993.87 is: 23,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,422.66 : 41,983.08 = 16,993.87 : x
  2. Step 2: Convert to fraction form
    30,422.66/41,983.08 = 16,993.87/x
  3. Step 3: Cross multiply
    30,422.66x = 41,983.08 × 16,993.87
  4. Step 4: Simplify right side
    30,422.66x = 713,454,978.42
  5. Step 5: Solve for x
    x = 713,454,978.42/30,422.66
  6. Step 6: Final answer
    x = 23,451.44

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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.