Home / 28,634.57-39,514.96-15,887.70

Finding the Fourth Proportional to 28,634.57, 39,514.96 and 15,887.70

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Solution

The fourth proportional to 28,634.57, 39,514.96 and 15,887.70 is: 21,924.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.57 : 39,514.96 = 15,887.70 : x
  2. Step 2: Convert to fraction form
    28,634.57/39,514.96 = 15,887.70/x
  3. Step 3: Cross multiply
    28,634.57x = 39,514.96 × 15,887.70
  4. Step 4: Simplify right side
    28,634.57x = 627,801,750.55
  5. Step 5: Solve for x
    x = 627,801,750.55/28,634.57
  6. Step 6: Final answer
    x = 21,924.61

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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.