Home / 28,724.80-43,069.56-11,174.20

Finding the Fourth Proportional to 28,724.80, 43,069.56 and 11,174.20

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Solution

The fourth proportional to 28,724.80, 43,069.56 and 11,174.20 is: 16,754.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.80 : 43,069.56 = 11,174.20 : x
  2. Step 2: Convert to fraction form
    28,724.80/43,069.56 = 11,174.20/x
  3. Step 3: Cross multiply
    28,724.80x = 43,069.56 × 11,174.20
  4. Step 4: Simplify right side
    28,724.80x = 481,267,877.35
  5. Step 5: Solve for x
    x = 481,267,877.35/28,724.80
  6. Step 6: Final answer
    x = 16,754.44

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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.