Home / 28,322.49-42,447.41-11,694.21

Finding the Fourth Proportional to 28,322.49, 42,447.41 and 11,694.21

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Solution

The fourth proportional to 28,322.49, 42,447.41 and 11,694.21 is: 17,526.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.49 : 42,447.41 = 11,694.21 : x
  2. Step 2: Convert to fraction form
    28,322.49/42,447.41 = 11,694.21/x
  3. Step 3: Cross multiply
    28,322.49x = 42,447.41 × 11,694.21
  4. Step 4: Simplify right side
    28,322.49x = 496,388,752.70
  5. Step 5: Solve for x
    x = 496,388,752.70/28,322.49
  6. Step 6: Final answer
    x = 17,526.31

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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.