Home / 19,717.40-27,194.58-12,644.48

Finding the Fourth Proportional to 19,717.40, 27,194.58 and 12,644.48

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Solution

The fourth proportional to 19,717.40, 27,194.58 and 12,644.48 is: 17,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.40 : 27,194.58 = 12,644.48 : x
  2. Step 2: Convert to fraction form
    19,717.40/27,194.58 = 12,644.48/x
  3. Step 3: Cross multiply
    19,717.40x = 27,194.58 × 12,644.48
  4. Step 4: Simplify right side
    19,717.40x = 343,861,186.95
  5. Step 5: Solve for x
    x = 343,861,186.95/19,717.40
  6. Step 6: Final answer
    x = 17,439.48

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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.