Home / 28,286.16-42,429.23-7,226.24

Finding the Fourth Proportional to 28,286.16, 42,429.23 and 7,226.24

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Solution

The fourth proportional to 28,286.16, 42,429.23 and 7,226.24 is: 10,839.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.16 : 42,429.23 = 7,226.24 : x
  2. Step 2: Convert to fraction form
    28,286.16/42,429.23 = 7,226.24/x
  3. Step 3: Cross multiply
    28,286.16x = 42,429.23 × 7,226.24
  4. Step 4: Simplify right side
    28,286.16x = 306,603,976.46
  5. Step 5: Solve for x
    x = 306,603,976.46/28,286.16
  6. Step 6: Final answer
    x = 10,839.36

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Similar ratio
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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.