Home / 28,067.72-38,732.49-16,731.38

Finding the Fourth Proportional to 28,067.72, 38,732.49 and 16,731.38

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Solution

The fourth proportional to 28,067.72, 38,732.49 and 16,731.38 is: 23,088.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.72 : 38,732.49 = 16,731.38 : x
  2. Step 2: Convert to fraction form
    28,067.72/38,732.49 = 16,731.38/x
  3. Step 3: Cross multiply
    28,067.72x = 38,732.49 × 16,731.38
  4. Step 4: Simplify right side
    28,067.72x = 648,047,814.87
  5. Step 5: Solve for x
    x = 648,047,814.87/28,067.72
  6. Step 6: Final answer
    x = 23,088.72

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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.