Home / 25,944.12-38,921.86-8,415.72

Finding the Fourth Proportional to 25,944.12, 38,921.86 and 8,415.72

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Solution

The fourth proportional to 25,944.12, 38,921.86 and 8,415.72 is: 12,625.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,944.12 : 38,921.86 = 8,415.72 : x
  2. Step 2: Convert to fraction form
    25,944.12/38,921.86 = 8,415.72/x
  3. Step 3: Cross multiply
    25,944.12x = 38,921.86 × 8,415.72
  4. Step 4: Simplify right side
    25,944.12x = 327,555,475.64
  5. Step 5: Solve for x
    x = 327,555,475.64/25,944.12
  6. Step 6: Final answer
    x = 12,625.42

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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.