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Finding the Fourth Proportional to 30,863.80, 46,295.70 and 29,999.80

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Solution

The fourth proportional to 30,863.80, 46,295.70 and 29,999.80 is: 44,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,863.80 : 46,295.70 = 29,999.80 : x
  2. Step 2: Convert to fraction form
    30,863.80/46,295.70 = 29,999.80/x
  3. Step 3: Cross multiply
    30,863.80x = 46,295.70 × 29,999.80
  4. Step 4: Simplify right side
    30,863.80x = 1,388,861,740.86
  5. Step 5: Solve for x
    x = 1,388,861,740.86/30,863.80
  6. Step 6: Final answer
    x = 44,999.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.