Home / 28,245.64-38,980.83-16,309.48

Finding the Fourth Proportional to 28,245.64, 38,980.83 and 16,309.48

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Solution

The fourth proportional to 28,245.64, 38,980.83 and 16,309.48 is: 22,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.64 : 38,980.83 = 16,309.48 : x
  2. Step 2: Convert to fraction form
    28,245.64/38,980.83 = 16,309.48/x
  3. Step 3: Cross multiply
    28,245.64x = 38,980.83 × 16,309.48
  4. Step 4: Simplify right side
    28,245.64x = 635,757,067.27
  5. Step 5: Solve for x
    x = 635,757,067.27/28,245.64
  6. Step 6: Final answer
    x = 22,508.15

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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.