Home / 28,777.60-43,179.84-11,242.88

Finding the Fourth Proportional to 28,777.60, 43,179.84 and 11,242.88

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Solution

The fourth proportional to 28,777.60, 43,179.84 and 11,242.88 is: 16,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.60 : 43,179.84 = 11,242.88 : x
  2. Step 2: Convert to fraction form
    28,777.60/43,179.84 = 11,242.88/x
  3. Step 3: Cross multiply
    28,777.60x = 43,179.84 × 11,242.88
  4. Step 4: Simplify right side
    28,777.60x = 485,465,759.54
  5. Step 5: Solve for x
    x = 485,465,759.54/28,777.60
  6. Step 6: Final answer
    x = 16,869.57

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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.