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Finding the Fourth Proportional to 30,914.87, 46,375.54 and 14,279.69

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Solution

The fourth proportional to 30,914.87, 46,375.54 and 14,279.69 is: 21,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,914.87 : 46,375.54 = 14,279.69 : x
  2. Step 2: Convert to fraction form
    30,914.87/46,375.54 = 14,279.69/x
  3. Step 3: Cross multiply
    30,914.87x = 46,375.54 × 14,279.69
  4. Step 4: Simplify right side
    30,914.87x = 662,228,415.02
  5. Step 5: Solve for x
    x = 662,228,415.02/30,914.87
  6. Step 6: Final answer
    x = 21,421.04

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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.