Home / 26,859.35-40,289.82-12,820.86

Finding the Fourth Proportional to 26,859.35, 40,289.82 and 12,820.86

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Solution

The fourth proportional to 26,859.35, 40,289.82 and 12,820.86 is: 19,231.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,859.35 : 40,289.82 = 12,820.86 : x
  2. Step 2: Convert to fraction form
    26,859.35/40,289.82 = 12,820.86/x
  3. Step 3: Cross multiply
    26,859.35x = 40,289.82 × 12,820.86
  4. Step 4: Simplify right side
    26,859.35x = 516,550,141.65
  5. Step 5: Solve for x
    x = 516,550,141.65/26,859.35
  6. Step 6: Final answer
    x = 19,231.67

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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.