Home / 27,990.20-41,928.60-17,427.80

Finding the Fourth Proportional to 27,990.20, 41,928.60 and 17,427.80

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Solution

The fourth proportional to 27,990.20, 41,928.60 and 17,427.80 is: 26,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.20 : 41,928.60 = 17,427.80 : x
  2. Step 2: Convert to fraction form
    27,990.20/41,928.60 = 17,427.80/x
  3. Step 3: Cross multiply
    27,990.20x = 41,928.60 × 17,427.80
  4. Step 4: Simplify right side
    27,990.20x = 730,723,255.08
  5. Step 5: Solve for x
    x = 730,723,255.08/27,990.20
  6. Step 6: Final answer
    x = 26,106.40

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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.