Home / 22,021.97-30,390.33-12,461.65

Finding the Fourth Proportional to 22,021.97, 30,390.33 and 12,461.65

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Solution

The fourth proportional to 22,021.97, 30,390.33 and 12,461.65 is: 17,197.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.97 : 30,390.33 = 12,461.65 : x
  2. Step 2: Convert to fraction form
    22,021.97/30,390.33 = 12,461.65/x
  3. Step 3: Cross multiply
    22,021.97x = 30,390.33 × 12,461.65
  4. Step 4: Simplify right side
    22,021.97x = 378,713,579.87
  5. Step 5: Solve for x
    x = 378,713,579.87/22,021.97
  6. Step 6: Final answer
    x = 17,197.08

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Double scale
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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.