Home / 28,226.14-42,342.04-7,449.64

Finding the Fourth Proportional to 28,226.14, 42,342.04 and 7,449.64

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Solution

The fourth proportional to 28,226.14, 42,342.04 and 7,449.64 is: 11,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.14 : 42,342.04 = 7,449.64 : x
  2. Step 2: Convert to fraction form
    28,226.14/42,342.04 = 7,449.64/x
  3. Step 3: Cross multiply
    28,226.14x = 42,342.04 × 7,449.64
  4. Step 4: Simplify right side
    28,226.14x = 315,432,743.16
  5. Step 5: Solve for x
    x = 315,432,743.16/28,226.14
  6. Step 6: Final answer
    x = 11,175.20

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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.