Home / 19,778.94-29,629.18-10,404.80

Finding the Fourth Proportional to 19,778.94, 29,629.18 and 10,404.80

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Solution

The fourth proportional to 19,778.94, 29,629.18 and 10,404.80 is: 15,586.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.94 : 29,629.18 = 10,404.80 : x
  2. Step 2: Convert to fraction form
    19,778.94/29,629.18 = 10,404.80/x
  3. Step 3: Cross multiply
    19,778.94x = 29,629.18 × 10,404.80
  4. Step 4: Simplify right side
    19,778.94x = 308,285,692.06
  5. Step 5: Solve for x
    x = 308,285,692.06/19,778.94
  6. Step 6: Final answer
    x = 15,586.56

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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.