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Finding the Fourth Proportional to 36,855, 50,859.90 and 20,089.08

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Solution

The fourth proportional to 36,855, 50,859.90 and 20,089.08 is: 27,722.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,855 : 50,859.90 = 20,089.08 : x
  2. Step 2: Convert to fraction form
    36,855/50,859.90 = 20,089.08/x
  3. Step 3: Cross multiply
    36,855x = 50,859.90 × 20,089.08
  4. Step 4: Simplify right side
    36,855x = 1,021,728,599.89
  5. Step 5: Solve for x
    x = 1,021,728,599.89/36,855
  6. Step 6: Final answer
    x = 27,722.93

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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.