Home / 25,378.32-38,067.48-7,847.76

Finding the Fourth Proportional to 25,378.32, 38,067.48 and 7,847.76

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Solution

The fourth proportional to 25,378.32, 38,067.48 and 7,847.76 is: 11,771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,378.32 : 38,067.48 = 7,847.76 : x
  2. Step 2: Convert to fraction form
    25,378.32/38,067.48 = 7,847.76/x
  3. Step 3: Cross multiply
    25,378.32x = 38,067.48 × 7,847.76
  4. Step 4: Simplify right side
    25,378.32x = 298,744,446.84
  5. Step 5: Solve for x
    x = 298,744,446.84/25,378.32
  6. Step 6: Final answer
    x = 11,771.64

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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.