Home / 22,625.38-31,221.61-13,667.59

Finding the Fourth Proportional to 22,625.38, 31,221.61 and 13,667.59

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Solution

The fourth proportional to 22,625.38, 31,221.61 and 13,667.59 is: 18,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,625.38 : 31,221.61 = 13,667.59 : x
  2. Step 2: Convert to fraction form
    22,625.38/31,221.61 = 13,667.59/x
  3. Step 3: Cross multiply
    22,625.38x = 31,221.61 × 13,667.59
  4. Step 4: Simplify right side
    22,625.38x = 426,724,164.62
  5. Step 5: Solve for x
    x = 426,724,164.62/22,625.38
  6. Step 6: Final answer
    x = 18,860.42

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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.