Home / 20,372.88-28,081.56-14,394.96

Finding the Fourth Proportional to 20,372.88, 28,081.56 and 14,394.96

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Solution

The fourth proportional to 20,372.88, 28,081.56 and 14,394.96 is: 19,841.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372.88 : 28,081.56 = 14,394.96 : x
  2. Step 2: Convert to fraction form
    20,372.88/28,081.56 = 14,394.96/x
  3. Step 3: Cross multiply
    20,372.88x = 28,081.56 × 14,394.96
  4. Step 4: Simplify right side
    20,372.88x = 404,232,932.94
  5. Step 5: Solve for x
    x = 404,232,932.94/20,372.88
  6. Step 6: Final answer
    x = 19,841.72

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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.