Home / 27,136.48-37,427.28-18,181.12

Finding the Fourth Proportional to 27,136.48, 37,427.28 and 18,181.12

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Solution

The fourth proportional to 27,136.48, 37,427.28 and 18,181.12 is: 25,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,136.48 : 37,427.28 = 18,181.12 : x
  2. Step 2: Convert to fraction form
    27,136.48/37,427.28 = 18,181.12/x
  3. Step 3: Cross multiply
    27,136.48x = 37,427.28 × 18,181.12
  4. Step 4: Simplify right side
    27,136.48x = 680,469,868.95
  5. Step 5: Solve for x
    x = 680,469,868.95/27,136.48
  6. Step 6: Final answer
    x = 25,075.83

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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.