Home / 27,280.75-37,635.05-19,715.09

Finding the Fourth Proportional to 27,280.75, 37,635.05 and 19,715.09

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Solution

The fourth proportional to 27,280.75, 37,635.05 and 19,715.09 is: 27,197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,280.75 : 37,635.05 = 19,715.09 : x
  2. Step 2: Convert to fraction form
    27,280.75/37,635.05 = 19,715.09/x
  3. Step 3: Cross multiply
    27,280.75x = 37,635.05 × 19,715.09
  4. Step 4: Simplify right side
    27,280.75x = 741,978,556.40
  5. Step 5: Solve for x
    x = 741,978,556.40/27,280.75
  6. Step 6: Final answer
    x = 27,197.88

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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.