Home / 22,136.57-30,537.64-13,181.21

Finding the Fourth Proportional to 22,136.57, 30,537.64 and 13,181.21

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Solution

The fourth proportional to 22,136.57, 30,537.64 and 13,181.21 is: 18,183.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,136.57 : 30,537.64 = 13,181.21 : x
  2. Step 2: Convert to fraction form
    22,136.57/30,537.64 = 13,181.21/x
  3. Step 3: Cross multiply
    22,136.57x = 30,537.64 × 13,181.21
  4. Step 4: Simplify right side
    22,136.57x = 402,523,045.74
  5. Step 5: Solve for x
    x = 402,523,045.74/22,136.57
  6. Step 6: Final answer
    x = 18,183.62

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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.