Home / 27,865.53-38,453.27-15,289.47

Finding the Fourth Proportional to 27,865.53, 38,453.27 and 15,289.47

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Solution

The fourth proportional to 27,865.53, 38,453.27 and 15,289.47 is: 21,098.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,865.53 : 38,453.27 = 15,289.47 : x
  2. Step 2: Convert to fraction form
    27,865.53/38,453.27 = 15,289.47/x
  3. Step 3: Cross multiply
    27,865.53x = 38,453.27 × 15,289.47
  4. Step 4: Simplify right side
    27,865.53x = 587,930,041.62
  5. Step 5: Solve for x
    x = 587,930,041.62/27,865.53
  6. Step 6: Final answer
    x = 21,098.83

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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.