Home / 36,938.26-55,419.69-11,979.12

Finding the Fourth Proportional to 36,938.26, 55,419.69 and 11,979.12

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Solution

The fourth proportional to 36,938.26, 55,419.69 and 11,979.12 is: 17,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,938.26 : 55,419.69 = 11,979.12 : x
  2. Step 2: Convert to fraction form
    36,938.26/55,419.69 = 11,979.12/x
  3. Step 3: Cross multiply
    36,938.26x = 55,419.69 × 11,979.12
  4. Step 4: Simplify right side
    36,938.26x = 663,879,369.62
  5. Step 5: Solve for x
    x = 663,879,369.62/36,938.26
  6. Step 6: Final answer
    x = 17,972.68

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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.