Home / 19,236.73-28,855.10-5,385.73

Finding the Fourth Proportional to 19,236.73, 28,855.10 and 5,385.73

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Solution

The fourth proportional to 19,236.73, 28,855.10 and 5,385.73 is: 8,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,236.73 : 28,855.10 = 5,385.73 : x
  2. Step 2: Convert to fraction form
    19,236.73/28,855.10 = 5,385.73/x
  3. Step 3: Cross multiply
    19,236.73x = 28,855.10 × 5,385.73
  4. Step 4: Simplify right side
    19,236.73x = 155,405,777.72
  5. Step 5: Solve for x
    x = 155,405,777.72/19,236.73
  6. Step 6: Final answer
    x = 8,078.60

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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.