Home / 19,677.20-27,164.38-12,514.32

Finding the Fourth Proportional to 19,677.20, 27,164.38 and 12,514.32

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Solution

The fourth proportional to 19,677.20, 27,164.38 and 12,514.32 is: 17,276.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,677.20 : 27,164.38 = 12,514.32 : x
  2. Step 2: Convert to fraction form
    19,677.20/27,164.38 = 12,514.32/x
  3. Step 3: Cross multiply
    19,677.20x = 27,164.38 × 12,514.32
  4. Step 4: Simplify right side
    19,677.20x = 339,943,743.92
  5. Step 5: Solve for x
    x = 339,943,743.92/19,677.20
  6. Step 6: Final answer
    x = 17,276.02

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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.