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Finding the Fourth Proportional to 30,375.50, 41,919.41 and 16,947.93

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Solution

The fourth proportional to 30,375.50, 41,919.41 and 16,947.93 is: 23,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,375.50 : 41,919.41 = 16,947.93 : x
  2. Step 2: Convert to fraction form
    30,375.50/41,919.41 = 16,947.93/x
  3. Step 3: Cross multiply
    30,375.50x = 41,919.41 × 16,947.93
  4. Step 4: Simplify right side
    30,375.50x = 710,447,141.58
  5. Step 5: Solve for x
    x = 710,447,141.58/30,375.50
  6. Step 6: Final answer
    x = 23,388.82

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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.