Home / 28,115.88-38,798.78-16,179.64

Finding the Fourth Proportional to 28,115.88, 38,798.78 and 16,179.64

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Solution

The fourth proportional to 28,115.88, 38,798.78 and 16,179.64 is: 22,327.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.88 : 38,798.78 = 16,179.64 : x
  2. Step 2: Convert to fraction form
    28,115.88/38,798.78 = 16,179.64/x
  3. Step 3: Cross multiply
    28,115.88x = 38,798.78 × 16,179.64
  4. Step 4: Simplify right side
    28,115.88x = 627,750,292.84
  5. Step 5: Solve for x
    x = 627,750,292.84/28,115.88
  6. Step 6: Final answer
    x = 22,327.25

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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.