Home / 28,608.28-42,921.24-12,826.60

Finding the Fourth Proportional to 28,608.28, 42,921.24 and 12,826.60

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Solution

The fourth proportional to 28,608.28, 42,921.24 and 12,826.60 is: 19,243.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.28 : 42,921.24 = 12,826.60 : x
  2. Step 2: Convert to fraction form
    28,608.28/42,921.24 = 12,826.60/x
  3. Step 3: Cross multiply
    28,608.28x = 42,921.24 × 12,826.60
  4. Step 4: Simplify right side
    28,608.28x = 550,533,576.98
  5. Step 5: Solve for x
    x = 550,533,576.98/28,608.28
  6. Step 6: Final answer
    x = 19,243.85

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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.