Home / 22,212.97-30,653.93-12,783.37

Finding the Fourth Proportional to 22,212.97, 30,653.93 and 12,783.37

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Solution

The fourth proportional to 22,212.97, 30,653.93 and 12,783.37 is: 17,641.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.97 : 30,653.93 = 12,783.37 : x
  2. Step 2: Convert to fraction form
    22,212.97/30,653.93 = 12,783.37/x
  3. Step 3: Cross multiply
    22,212.97x = 30,653.93 × 12,783.37
  4. Step 4: Simplify right side
    22,212.97x = 391,860,529.14
  5. Step 5: Solve for x
    x = 391,860,529.14/22,212.97
  6. Step 6: Final answer
    x = 17,641.07

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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.