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Finding the Fourth Proportional to 22,367.21, 30,867.44 and 12,807.11

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Solution

The fourth proportional to 22,367.21, 30,867.44 and 12,807.11 is: 17,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,367.21 : 30,867.44 = 12,807.11 : x
  2. Step 2: Convert to fraction form
    22,367.21/30,867.44 = 12,807.11/x
  3. Step 3: Cross multiply
    22,367.21x = 30,867.44 × 12,807.11
  4. Step 4: Simplify right side
    22,367.21x = 395,322,712.63
  5. Step 5: Solve for x
    x = 395,322,712.63/22,367.21
  6. Step 6: Final answer
    x = 17,674.21

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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.