Home / 36,774.72-55,128.64-13,395.84

Finding the Fourth Proportional to 36,774.72, 55,128.64 and 13,395.84

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Solution

The fourth proportional to 36,774.72, 55,128.64 and 13,395.84 is: 20,081.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,774.72 : 55,128.64 = 13,395.84 : x
  2. Step 2: Convert to fraction form
    36,774.72/55,128.64 = 13,395.84/x
  3. Step 3: Cross multiply
    36,774.72x = 55,128.64 × 13,395.84
  4. Step 4: Simplify right side
    36,774.72x = 738,494,440.86
  5. Step 5: Solve for x
    x = 738,494,440.86/36,774.72
  6. Step 6: Final answer
    x = 20,081.58

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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.