Home / 28,299.84-42,449.60-7,239.85

Finding the Fourth Proportional to 28,299.84, 42,449.60 and 7,239.85

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Solution

The fourth proportional to 28,299.84, 42,449.60 and 7,239.85 is: 10,859.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.84 : 42,449.60 = 7,239.85 : x
  2. Step 2: Convert to fraction form
    28,299.84/42,449.60 = 7,239.85/x
  3. Step 3: Cross multiply
    28,299.84x = 42,449.60 × 7,239.85
  4. Step 4: Simplify right side
    28,299.84x = 307,328,736.56
  5. Step 5: Solve for x
    x = 307,328,736.56/28,299.84
  6. Step 6: Final answer
    x = 10,859.73

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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.