Home / 36,910.62-50,939.40-21,000.20

Finding the Fourth Proportional to 36,910.62, 50,939.40 and 21,000.20

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Solution

The fourth proportional to 36,910.62, 50,939.40 and 21,000.20 is: 28,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,910.62 : 50,939.40 = 21,000.20 : x
  2. Step 2: Convert to fraction form
    36,910.62/50,939.40 = 21,000.20/x
  3. Step 3: Cross multiply
    36,910.62x = 50,939.40 × 21,000.20
  4. Step 4: Simplify right side
    36,910.62x = 1,069,737,587.88
  5. Step 5: Solve for x
    x = 1,069,737,587.88/36,910.62
  6. Step 6: Final answer
    x = 28,981.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.