Home / 21,631.62-29,851.68-12,200.22

Finding the Fourth Proportional to 21,631.62, 29,851.68 and 12,200.22

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Solution

The fourth proportional to 21,631.62, 29,851.68 and 12,200.22 is: 16,836.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.62 : 29,851.68 = 12,200.22 : x
  2. Step 2: Convert to fraction form
    21,631.62/29,851.68 = 12,200.22/x
  3. Step 3: Cross multiply
    21,631.62x = 29,851.68 × 12,200.22
  4. Step 4: Simplify right side
    21,631.62x = 364,197,063.37
  5. Step 5: Solve for x
    x = 364,197,063.37/21,631.62
  6. Step 6: Final answer
    x = 16,836.33

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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.