Home / 26,503.21-36,536.78-21,078.08

Finding the Fourth Proportional to 26,503.21, 36,536.78 and 21,078.08

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Solution

The fourth proportional to 26,503.21, 36,536.78 and 21,078.08 is: 29,057.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,503.21 : 36,536.78 = 21,078.08 : x
  2. Step 2: Convert to fraction form
    26,503.21/36,536.78 = 21,078.08/x
  3. Step 3: Cross multiply
    26,503.21x = 36,536.78 × 21,078.08
  4. Step 4: Simplify right side
    26,503.21x = 770,125,311.21
  5. Step 5: Solve for x
    x = 770,125,311.21/26,503.21
  6. Step 6: Final answer
    x = 29,057.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.