Home / 36,936.56-55,399.36-11,978.80

Finding the Fourth Proportional to 36,936.56, 55,399.36 and 11,978.80

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Solution

The fourth proportional to 36,936.56, 55,399.36 and 11,978.80 is: 17,966.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,936.56 : 55,399.36 = 11,978.80 : x
  2. Step 2: Convert to fraction form
    36,936.56/55,399.36 = 11,978.80/x
  3. Step 3: Cross multiply
    36,936.56x = 55,399.36 × 11,978.80
  4. Step 4: Simplify right side
    36,936.56x = 663,617,853.57
  5. Step 5: Solve for x
    x = 663,617,853.57/36,936.56
  6. Step 6: Final answer
    x = 17,966.42

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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.