Home / 27,618.72-38,136.32-22,515.04

Finding the Fourth Proportional to 27,618.72, 38,136.32 and 22,515.04

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Solution

The fourth proportional to 27,618.72, 38,136.32 and 22,515.04 is: 31,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,618.72 : 38,136.32 = 22,515.04 : x
  2. Step 2: Convert to fraction form
    27,618.72/38,136.32 = 22,515.04/x
  3. Step 3: Cross multiply
    27,618.72x = 38,136.32 × 22,515.04
  4. Step 4: Simplify right side
    27,618.72x = 858,640,770.25
  5. Step 5: Solve for x
    x = 858,640,770.25/27,618.72
  6. Step 6: Final answer
    x = 31,089.09

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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.