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Finding the Fourth Proportional to 22,152.60, 30,570.81 and 12,080.94

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Solution

The fourth proportional to 22,152.60, 30,570.81 and 12,080.94 is: 16,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,152.60 : 30,570.81 = 12,080.94 : x
  2. Step 2: Convert to fraction form
    22,152.60/30,570.81 = 12,080.94/x
  3. Step 3: Cross multiply
    22,152.60x = 30,570.81 × 12,080.94
  4. Step 4: Simplify right side
    22,152.60x = 369,324,121.36
  5. Step 5: Solve for x
    x = 369,324,121.36/22,152.60
  6. Step 6: Final answer
    x = 16,671.82

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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.