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Finding the Fourth Proportional to 36,802.92, 50,786.28 and 20,885.21

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Solution

The fourth proportional to 36,802.92, 50,786.28 and 20,885.21 is: 28,820.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,802.92 : 50,786.28 = 20,885.21 : x
  2. Step 2: Convert to fraction form
    36,802.92/50,786.28 = 20,885.21/x
  3. Step 3: Cross multiply
    36,802.92x = 50,786.28 × 20,885.21
  4. Step 4: Simplify right side
    36,802.92x = 1,060,682,122.92
  5. Step 5: Solve for x
    x = 1,060,682,122.92/36,802.92
  6. Step 6: Final answer
    x = 28,820.60

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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.