Home / 36,781.81-55,180.91-13,408.25

Finding the Fourth Proportional to 36,781.81, 55,180.91 and 13,408.25

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Solution

The fourth proportional to 36,781.81, 55,180.91 and 13,408.25 is: 20,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,781.81 : 55,180.91 = 13,408.25 : x
  2. Step 2: Convert to fraction form
    36,781.81/55,180.91 = 13,408.25/x
  3. Step 3: Cross multiply
    36,781.81x = 55,180.91 × 13,408.25
  4. Step 4: Simplify right side
    36,781.81x = 739,879,194.12
  5. Step 5: Solve for x
    x = 739,879,194.12/36,781.81
  6. Step 6: Final answer
    x = 20,115.36

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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.