Home / 28,067.62-42,071.29-13,999.86

Finding the Fourth Proportional to 28,067.62, 42,071.29 and 13,999.86

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Solution

The fourth proportional to 28,067.62, 42,071.29 and 13,999.86 is: 20,984.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.62 : 42,071.29 = 13,999.86 : x
  2. Step 2: Convert to fraction form
    28,067.62/42,071.29 = 13,999.86/x
  3. Step 3: Cross multiply
    28,067.62x = 42,071.29 × 13,999.86
  4. Step 4: Simplify right side
    28,067.62x = 588,992,170.02
  5. Step 5: Solve for x
    x = 588,992,170.02/28,067.62
  6. Step 6: Final answer
    x = 20,984.76

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1.5x scale

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.