Home / 28,778.59-43,134.20-10,997.60

Finding the Fourth Proportional to 28,778.59, 43,134.20 and 10,997.60

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Solution

The fourth proportional to 28,778.59, 43,134.20 and 10,997.60 is: 16,483.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778.59 : 43,134.20 = 10,997.60 : x
  2. Step 2: Convert to fraction form
    28,778.59/43,134.20 = 10,997.60/x
  3. Step 3: Cross multiply
    28,778.59x = 43,134.20 × 10,997.60
  4. Step 4: Simplify right side
    28,778.59x = 474,372,622.93
  5. Step 5: Solve for x
    x = 474,372,622.93/28,778.59
  6. Step 6: Final answer
    x = 16,483.53

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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.