Home / 22,136.68-30,551.34-13,640.59

Finding the Fourth Proportional to 22,136.68, 30,551.34 and 13,640.59

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Solution

The fourth proportional to 22,136.68, 30,551.34 and 13,640.59 is: 18,825.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,136.68 : 30,551.34 = 13,640.59 : x
  2. Step 2: Convert to fraction form
    22,136.68/30,551.34 = 13,640.59/x
  3. Step 3: Cross multiply
    22,136.68x = 30,551.34 × 13,640.59
  4. Step 4: Simplify right side
    22,136.68x = 416,738,302.89
  5. Step 5: Solve for x
    x = 416,738,302.89/22,136.68
  6. Step 6: Final answer
    x = 18,825.69

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Double scale
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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.