Home / 28,231.20-42,298.20-26,481.60

Finding the Fourth Proportional to 28,231.20, 42,298.20 and 26,481.60

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Solution

The fourth proportional to 28,231.20, 42,298.20 and 26,481.60 is: 39,676.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.20 : 42,298.20 = 26,481.60 : x
  2. Step 2: Convert to fraction form
    28,231.20/42,298.20 = 26,481.60/x
  3. Step 3: Cross multiply
    28,231.20x = 42,298.20 × 26,481.60
  4. Step 4: Simplify right side
    28,231.20x = 1,120,124,013.12
  5. Step 5: Solve for x
    x = 1,120,124,013.12/28,231.20
  6. Step 6: Final answer
    x = 39,676.81

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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.