Home / 28,198.08-38,910.75-16,259.11

Finding the Fourth Proportional to 28,198.08, 38,910.75 and 16,259.11

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Solution

The fourth proportional to 28,198.08, 38,910.75 and 16,259.11 is: 22,436.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.08 : 38,910.75 = 16,259.11 : x
  2. Step 2: Convert to fraction form
    28,198.08/38,910.75 = 16,259.11/x
  3. Step 3: Cross multiply
    28,198.08x = 38,910.75 × 16,259.11
  4. Step 4: Simplify right side
    28,198.08x = 632,653,969.88
  5. Step 5: Solve for x
    x = 632,653,969.88/28,198.08
  6. Step 6: Final answer
    x = 22,436.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.