Home / 28,234.11-42,352.59-7,174.36

Finding the Fourth Proportional to 28,234.11, 42,352.59 and 7,174.36

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Solution

The fourth proportional to 28,234.11, 42,352.59 and 7,174.36 is: 10,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,234.11 : 42,352.59 = 7,174.36 : x
  2. Step 2: Convert to fraction form
    28,234.11/42,352.59 = 7,174.36/x
  3. Step 3: Cross multiply
    28,234.11x = 42,352.59 × 7,174.36
  4. Step 4: Simplify right side
    28,234.11x = 303,852,611.35
  5. Step 5: Solve for x
    x = 303,852,611.35/28,234.11
  6. Step 6: Final answer
    x = 10,761.90

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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.