Home / 27,865.26-38,453.94-15,289.74

Finding the Fourth Proportional to 27,865.26, 38,453.94 and 15,289.74

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Solution

The fourth proportional to 27,865.26, 38,453.94 and 15,289.74 is: 21,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,865.26 : 38,453.94 = 15,289.74 : x
  2. Step 2: Convert to fraction form
    27,865.26/38,453.94 = 15,289.74/x
  3. Step 3: Cross multiply
    27,865.26x = 38,453.94 × 15,289.74
  4. Step 4: Simplify right side
    27,865.26x = 587,950,744.58
  5. Step 5: Solve for x
    x = 587,950,744.58/27,865.26
  6. Step 6: Final answer
    x = 21,099.78

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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.