Home / 25,806.20-38,709.30-8,277.80

Finding the Fourth Proportional to 25,806.20, 38,709.30 and 8,277.80

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Solution

The fourth proportional to 25,806.20, 38,709.30 and 8,277.80 is: 12,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,806.20 : 38,709.30 = 8,277.80 : x
  2. Step 2: Convert to fraction form
    25,806.20/38,709.30 = 8,277.80/x
  3. Step 3: Cross multiply
    25,806.20x = 38,709.30 × 8,277.80
  4. Step 4: Simplify right side
    25,806.20x = 320,427,843.54
  5. Step 5: Solve for x
    x = 320,427,843.54/25,806.20
  6. Step 6: Final answer
    x = 12,416.70

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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.