Home / 22,381.72-33,570.78-13,015.75

Finding the Fourth Proportional to 22,381.72, 33,570.78 and 13,015.75

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Solution

The fourth proportional to 22,381.72, 33,570.78 and 13,015.75 is: 19,522.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,381.72 : 33,570.78 = 13,015.75 : x
  2. Step 2: Convert to fraction form
    22,381.72/33,570.78 = 13,015.75/x
  3. Step 3: Cross multiply
    22,381.72x = 33,570.78 × 13,015.75
  4. Step 4: Simplify right side
    22,381.72x = 436,948,879.79
  5. Step 5: Solve for x
    x = 436,948,879.79/22,381.72
  6. Step 6: Final answer
    x = 19,522.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.