Home / 36,979.80-55,475.10-13,604.28

Finding the Fourth Proportional to 36,979.80, 55,475.10 and 13,604.28

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Solution

The fourth proportional to 36,979.80, 55,475.10 and 13,604.28 is: 20,408.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,979.80 : 55,475.10 = 13,604.28 : x
  2. Step 2: Convert to fraction form
    36,979.80/55,475.10 = 13,604.28/x
  3. Step 3: Cross multiply
    36,979.80x = 55,475.10 × 13,604.28
  4. Step 4: Simplify right side
    36,979.80x = 754,698,793.43
  5. Step 5: Solve for x
    x = 754,698,793.43/36,979.80
  6. Step 6: Final answer
    x = 20,408.41

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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.