Home / 26,858.35-40,288.32-12,819.86

Finding the Fourth Proportional to 26,858.35, 40,288.32 and 12,819.86

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Solution

The fourth proportional to 26,858.35, 40,288.32 and 12,819.86 is: 19,230.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,858.35 : 40,288.32 = 12,819.86 : x
  2. Step 2: Convert to fraction form
    26,858.35/40,288.32 = 12,819.86/x
  3. Step 3: Cross multiply
    26,858.35x = 40,288.32 × 12,819.86
  4. Step 4: Simplify right side
    26,858.35x = 516,490,622.04
  5. Step 5: Solve for x
    x = 516,490,622.04/26,858.35
  6. Step 6: Final answer
    x = 19,230.17

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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.