Home / 27,878.20-41,760.60-17,315.80

Finding the Fourth Proportional to 27,878.20, 41,760.60 and 17,315.80

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Solution

The fourth proportional to 27,878.20, 41,760.60 and 17,315.80 is: 25,938.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,878.20 : 41,760.60 = 17,315.80 : x
  2. Step 2: Convert to fraction form
    27,878.20/41,760.60 = 17,315.80/x
  3. Step 3: Cross multiply
    27,878.20x = 41,760.60 × 17,315.80
  4. Step 4: Simplify right side
    27,878.20x = 723,118,197.48
  5. Step 5: Solve for x
    x = 723,118,197.48/27,878.20
  6. Step 6: Final answer
    x = 25,938.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.