Home / 28,518.75-42,778.73-8,799.03

Finding the Fourth Proportional to 28,518.75, 42,778.73 and 8,799.03

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Solution

The fourth proportional to 28,518.75, 42,778.73 and 8,799.03 is: 13,198.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.75 : 42,778.73 = 8,799.03 : x
  2. Step 2: Convert to fraction form
    28,518.75/42,778.73 = 8,799.03/x
  3. Step 3: Cross multiply
    28,518.75x = 42,778.73 × 8,799.03
  4. Step 4: Simplify right side
    28,518.75x = 376,411,350.63
  5. Step 5: Solve for x
    x = 376,411,350.63/28,518.75
  6. Step 6: Final answer
    x = 13,198.73

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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.