Home / 28,115.39-38,798.09-16,179.15

Finding the Fourth Proportional to 28,115.39, 38,798.09 and 16,179.15

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Solution

The fourth proportional to 28,115.39, 38,798.09 and 16,179.15 is: 22,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.39 : 38,798.09 = 16,179.15 : x
  2. Step 2: Convert to fraction form
    28,115.39/38,798.09 = 16,179.15/x
  3. Step 3: Cross multiply
    28,115.39x = 38,798.09 × 16,179.15
  4. Step 4: Simplify right side
    28,115.39x = 627,720,036.93
  5. Step 5: Solve for x
    x = 627,720,036.93/28,115.39
  6. Step 6: Final answer
    x = 22,326.57

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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.