Home / 20,498.43-28,287.51-11,546.79

Finding the Fourth Proportional to 20,498.43, 28,287.51 and 11,546.79

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Solution

The fourth proportional to 20,498.43, 28,287.51 and 11,546.79 is: 15,934.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.43 : 28,287.51 = 11,546.79 : x
  2. Step 2: Convert to fraction form
    20,498.43/28,287.51 = 11,546.79/x
  3. Step 3: Cross multiply
    20,498.43x = 28,287.51 × 11,546.79
  4. Step 4: Simplify right side
    20,498.43x = 326,629,937.59
  5. Step 5: Solve for x
    x = 326,629,937.59/20,498.43
  6. Step 6: Final answer
    x = 15,934.39

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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.