Home / 28,514.22-39,350.43-15,938.70

Finding the Fourth Proportional to 28,514.22, 39,350.43 and 15,938.70

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Solution

The fourth proportional to 28,514.22, 39,350.43 and 15,938.70 is: 21,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.22 : 39,350.43 = 15,938.70 : x
  2. Step 2: Convert to fraction form
    28,514.22/39,350.43 = 15,938.70/x
  3. Step 3: Cross multiply
    28,514.22x = 39,350.43 × 15,938.70
  4. Step 4: Simplify right side
    28,514.22x = 627,194,698.64
  5. Step 5: Solve for x
    x = 627,194,698.64/28,514.22
  6. Step 6: Final answer
    x = 21,995.86

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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.