Home / 36,878.10-55,316.43-11,920.02

Finding the Fourth Proportional to 36,878.10, 55,316.43 and 11,920.02

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Solution

The fourth proportional to 36,878.10, 55,316.43 and 11,920.02 is: 17,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,878.10 : 55,316.43 = 11,920.02 : x
  2. Step 2: Convert to fraction form
    36,878.10/55,316.43 = 11,920.02/x
  3. Step 3: Cross multiply
    36,878.10x = 55,316.43 × 11,920.02
  4. Step 4: Simplify right side
    36,878.10x = 659,372,951.93
  5. Step 5: Solve for x
    x = 659,372,951.93/36,878.10
  6. Step 6: Final answer
    x = 17,879.80

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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.