Home / 28,514.94-39,350.62-15,939.69

Finding the Fourth Proportional to 28,514.94, 39,350.62 and 15,939.69

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Solution

The fourth proportional to 28,514.94, 39,350.62 and 15,939.69 is: 21,996.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.94 : 39,350.62 = 15,939.69 : x
  2. Step 2: Convert to fraction form
    28,514.94/39,350.62 = 15,939.69/x
  3. Step 3: Cross multiply
    28,514.94x = 39,350.62 × 15,939.69
  4. Step 4: Simplify right side
    28,514.94x = 627,236,684.11
  5. Step 5: Solve for x
    x = 627,236,684.11/28,514.94
  6. Step 6: Final answer
    x = 21,996.77

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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.