Home / 28,163.49-42,230.09-11,288.03

Finding the Fourth Proportional to 28,163.49, 42,230.09 and 11,288.03

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Solution

The fourth proportional to 28,163.49, 42,230.09 and 11,288.03 is: 16,925.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163.49 : 42,230.09 = 11,288.03 : x
  2. Step 2: Convert to fraction form
    28,163.49/42,230.09 = 11,288.03/x
  3. Step 3: Cross multiply
    28,163.49x = 42,230.09 × 11,288.03
  4. Step 4: Simplify right side
    28,163.49x = 476,694,566.48
  5. Step 5: Solve for x
    x = 476,694,566.48/28,163.49
  6. Step 6: Final answer
    x = 16,925.97

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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.