Home / 30,138.89-41,591.61-16,709.81

Finding the Fourth Proportional to 30,138.89, 41,591.61 and 16,709.81

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Solution

The fourth proportional to 30,138.89, 41,591.61 and 16,709.81 is: 23,059.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.89 : 41,591.61 = 16,709.81 : x
  2. Step 2: Convert to fraction form
    30,138.89/41,591.61 = 16,709.81/x
  3. Step 3: Cross multiply
    30,138.89x = 41,591.61 × 16,709.81
  4. Step 4: Simplify right side
    30,138.89x = 694,987,692.74
  5. Step 5: Solve for x
    x = 694,987,692.74/30,138.89
  6. Step 6: Final answer
    x = 23,059.50

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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.