Home / 28,067.15-38,731.70-16,730.80

Finding the Fourth Proportional to 28,067.15, 38,731.70 and 16,730.80

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Solution

The fourth proportional to 28,067.15, 38,731.70 and 16,730.80 is: 23,087.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.15 : 38,731.70 = 16,730.80 : x
  2. Step 2: Convert to fraction form
    28,067.15/38,731.70 = 16,730.80/x
  3. Step 3: Cross multiply
    28,067.15x = 38,731.70 × 16,730.80
  4. Step 4: Simplify right side
    28,067.15x = 648,012,326.36
  5. Step 5: Solve for x
    x = 648,012,326.36/28,067.15
  6. Step 6: Final answer
    x = 23,087.93

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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.