Home / 28,198.16-38,910.88-16,259.20

Finding the Fourth Proportional to 28,198.16, 38,910.88 and 16,259.20

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Solution

The fourth proportional to 28,198.16, 38,910.88 and 16,259.20 is: 22,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198.16 : 38,910.88 = 16,259.20 : x
  2. Step 2: Convert to fraction form
    28,198.16/38,910.88 = 16,259.20/x
  3. Step 3: Cross multiply
    28,198.16x = 38,910.88 × 16,259.20
  4. Step 4: Simplify right side
    28,198.16x = 632,659,703.14
  5. Step 5: Solve for x
    x = 632,659,703.14/28,198.16
  6. Step 6: Final answer
    x = 22,436.20

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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.