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Finding the Fourth Proportional to 30,379, 41,924.64 and 17,807.80

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Solution

The fourth proportional to 30,379, 41,924.64 and 17,807.80 is: 24,575.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379 : 41,924.64 = 17,807.80 : x
  2. Step 2: Convert to fraction form
    30,379/41,924.64 = 17,807.80/x
  3. Step 3: Cross multiply
    30,379x = 41,924.64 × 17,807.80
  4. Step 4: Simplify right side
    30,379x = 746,585,604.19
  5. Step 5: Solve for x
    x = 746,585,604.19/30,379
  6. Step 6: Final answer
    x = 24,575.71

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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.