Home / 19,928.11-27,514.02-12,385.69

Finding the Fourth Proportional to 19,928.11, 27,514.02 and 12,385.69

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Solution

The fourth proportional to 19,928.11, 27,514.02 and 12,385.69 is: 17,100.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.11 : 27,514.02 = 12,385.69 : x
  2. Step 2: Convert to fraction form
    19,928.11/27,514.02 = 12,385.69/x
  3. Step 3: Cross multiply
    19,928.11x = 27,514.02 × 12,385.69
  4. Step 4: Simplify right side
    19,928.11x = 340,780,122.37
  5. Step 5: Solve for x
    x = 340,780,122.37/19,928.11
  6. Step 6: Final answer
    x = 17,100.47

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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.