Home / 36,602.62-54,858.94-20,820.78

Finding the Fourth Proportional to 36,602.62, 54,858.94 and 20,820.78

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Solution

The fourth proportional to 36,602.62, 54,858.94 and 20,820.78 is: 31,205.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,602.62 : 54,858.94 = 20,820.78 : x
  2. Step 2: Convert to fraction form
    36,602.62/54,858.94 = 20,820.78/x
  3. Step 3: Cross multiply
    36,602.62x = 54,858.94 × 20,820.78
  4. Step 4: Simplify right side
    36,602.62x = 1,142,205,868.72
  5. Step 5: Solve for x
    x = 1,142,205,868.72/36,602.62
  6. Step 6: Final answer
    x = 31,205.58

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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.