Home / 20,414.52-28,175.12-12,461.37

Finding the Fourth Proportional to 20,414.52, 28,175.12 and 12,461.37

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Solution

The fourth proportional to 20,414.52, 28,175.12 and 12,461.37 is: 17,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.52 : 28,175.12 = 12,461.37 : x
  2. Step 2: Convert to fraction form
    20,414.52/28,175.12 = 12,461.37/x
  3. Step 3: Cross multiply
    20,414.52x = 28,175.12 × 12,461.37
  4. Step 4: Simplify right side
    20,414.52x = 351,100,595.11
  5. Step 5: Solve for x
    x = 351,100,595.11/20,414.52
  6. Step 6: Final answer
    x = 17,198.57

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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.