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Finding the Fourth Proportional to 36,920, 50,950.68 and 20,154.08

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Solution

The fourth proportional to 36,920, 50,950.68 and 20,154.08 is: 27,813.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,920 : 50,950.68 = 20,154.08 : x
  2. Step 2: Convert to fraction form
    36,920/50,950.68 = 20,154.08/x
  3. Step 3: Cross multiply
    36,920x = 50,950.68 × 20,154.08
  4. Step 4: Simplify right side
    36,920x = 1,026,864,080.77
  5. Step 5: Solve for x
    x = 1,026,864,080.77/36,920
  6. Step 6: Final answer
    x = 27,813.22

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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.