Home / 25,761.96-38,579.58-12,571.80

Finding the Fourth Proportional to 25,761.96, 38,579.58 and 12,571.80

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Solution

The fourth proportional to 25,761.96, 38,579.58 and 12,571.80 is: 18,826.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,761.96 : 38,579.58 = 12,571.80 : x
  2. Step 2: Convert to fraction form
    25,761.96/38,579.58 = 12,571.80/x
  3. Step 3: Cross multiply
    25,761.96x = 38,579.58 × 12,571.80
  4. Step 4: Simplify right side
    25,761.96x = 485,014,763.84
  5. Step 5: Solve for x
    x = 485,014,763.84/25,761.96
  6. Step 6: Final answer
    x = 18,826.78

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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.