Home / 28,226.64-42,342.79-7,450.14

Finding the Fourth Proportional to 28,226.64, 42,342.79 and 7,450.14

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Solution

The fourth proportional to 28,226.64, 42,342.79 and 7,450.14 is: 11,175.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.64 : 42,342.79 = 7,450.14 : x
  2. Step 2: Convert to fraction form
    28,226.64/42,342.79 = 7,450.14/x
  3. Step 3: Cross multiply
    28,226.64x = 42,342.79 × 7,450.14
  4. Step 4: Simplify right side
    28,226.64x = 315,459,713.49
  5. Step 5: Solve for x
    x = 315,459,713.49/28,226.64
  6. Step 6: Final answer
    x = 11,175.96

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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.