Home / 36,419.63-54,616.21-12,720.54

Finding the Fourth Proportional to 36,419.63, 54,616.21 and 12,720.54

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Solution

The fourth proportional to 36,419.63, 54,616.21 and 12,720.54 is: 19,076.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,419.63 : 54,616.21 = 12,720.54 : x
  2. Step 2: Convert to fraction form
    36,419.63/54,616.21 = 12,720.54/x
  3. Step 3: Cross multiply
    36,419.63x = 54,616.21 × 12,720.54
  4. Step 4: Simplify right side
    36,419.63x = 694,747,652.15
  5. Step 5: Solve for x
    x = 694,747,652.15/36,419.63
  6. Step 6: Final answer
    x = 19,076.19

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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.