Home / 27,855.88-38,441.72-15,280.62

Finding the Fourth Proportional to 27,855.88, 38,441.72 and 15,280.62

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Solution

The fourth proportional to 27,855.88, 38,441.72 and 15,280.62 is: 21,087.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,855.88 : 38,441.72 = 15,280.62 : x
  2. Step 2: Convert to fraction form
    27,855.88/38,441.72 = 15,280.62/x
  3. Step 3: Cross multiply
    27,855.88x = 38,441.72 × 15,280.62
  4. Step 4: Simplify right side
    27,855.88x = 587,413,315.47
  5. Step 5: Solve for x
    x = 587,413,315.47/27,855.88
  6. Step 6: Final answer
    x = 21,087.59

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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.