Home / 22,160.33-30,578.51-13,550.84

Finding the Fourth Proportional to 22,160.33, 30,578.51 and 13,550.84

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Solution

The fourth proportional to 22,160.33, 30,578.51 and 13,550.84 is: 18,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,160.33 : 30,578.51 = 13,550.84 : x
  2. Step 2: Convert to fraction form
    22,160.33/30,578.51 = 13,550.84/x
  3. Step 3: Cross multiply
    22,160.33x = 30,578.51 × 13,550.84
  4. Step 4: Simplify right side
    22,160.33x = 414,364,496.45
  5. Step 5: Solve for x
    x = 414,364,496.45/22,160.33
  6. Step 6: Final answer
    x = 18,698.48

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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.