Home / 20,577.41-28,397.88-11,627.79

Finding the Fourth Proportional to 20,577.41, 28,397.88 and 11,627.79

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Solution

The fourth proportional to 20,577.41, 28,397.88 and 11,627.79 is: 16,046.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.41 : 28,397.88 = 11,627.79 : x
  2. Step 2: Convert to fraction form
    20,577.41/28,397.88 = 11,627.79/x
  3. Step 3: Cross multiply
    20,577.41x = 28,397.88 × 11,627.79
  4. Step 4: Simplify right side
    20,577.41x = 330,204,585.09
  5. Step 5: Solve for x
    x = 330,204,585.09/20,577.41
  6. Step 6: Final answer
    x = 16,046.95

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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.