Home / 28,198.32-42,297.78-11,554.08

Finding the Fourth Proportional to 28,198.32, 42,297.78 and 11,554.08

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Solution

The fourth proportional to 28,198.32, 42,297.78 and 11,554.08 is: 17,331.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.32 : 42,297.78 = 11,554.08 : x
  2. Step 2: Convert to fraction form
    28,198.32/42,297.78 = 11,554.08/x
  3. Step 3: Cross multiply
    28,198.32x = 42,297.78 × 11,554.08
  4. Step 4: Simplify right side
    28,198.32x = 488,711,933.94
  5. Step 5: Solve for x
    x = 488,711,933.94/28,198.32
  6. Step 6: Final answer
    x = 17,331.24

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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.