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Finding the Fourth Proportional to 36,003.40, 54,029.40 and 20,208.40

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Solution

The fourth proportional to 36,003.40, 54,029.40 and 20,208.40 is: 30,326.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,003.40 : 54,029.40 = 20,208.40 : x
  2. Step 2: Convert to fraction form
    36,003.40/54,029.40 = 20,208.40/x
  3. Step 3: Cross multiply
    36,003.40x = 54,029.40 × 20,208.40
  4. Step 4: Simplify right side
    36,003.40x = 1,091,847,726.96
  5. Step 5: Solve for x
    x = 1,091,847,726.96/36,003.40
  6. Step 6: Final answer
    x = 30,326.24

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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.