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Finding the Fourth Proportional to 36,819.42, 50,809.02 and 20,901.72

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Solution

The fourth proportional to 36,819.42, 50,809.02 and 20,901.72 is: 28,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,819.42 : 50,809.02 = 20,901.72 : x
  2. Step 2: Convert to fraction form
    36,819.42/50,809.02 = 20,901.72/x
  3. Step 3: Cross multiply
    36,819.42x = 50,809.02 × 20,901.72
  4. Step 4: Simplify right side
    36,819.42x = 1,061,995,909.51
  5. Step 5: Solve for x
    x = 1,061,995,909.51/36,819.42
  6. Step 6: Final answer
    x = 28,843.36

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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.