Home / 19,704.33-27,191.97-12,630.77

Finding the Fourth Proportional to 19,704.33, 27,191.97 and 12,630.77

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Solution

The fourth proportional to 19,704.33, 27,191.97 and 12,630.77 is: 17,430.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,704.33 : 27,191.97 = 12,630.77 : x
  2. Step 2: Convert to fraction form
    19,704.33/27,191.97 = 12,630.77/x
  3. Step 3: Cross multiply
    19,704.33x = 27,191.97 × 12,630.77
  4. Step 4: Simplify right side
    19,704.33x = 343,455,382.96
  5. Step 5: Solve for x
    x = 343,455,382.96/19,704.33
  6. Step 6: Final answer
    x = 17,430.45

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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.