Home / 19,660.20-27,140.34-11,591.40

Finding the Fourth Proportional to 19,660.20, 27,140.34 and 11,591.40

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Solution

The fourth proportional to 19,660.20, 27,140.34 and 11,591.40 is: 16,001.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.20 : 27,140.34 = 11,591.40 : x
  2. Step 2: Convert to fraction form
    19,660.20/27,140.34 = 11,591.40/x
  3. Step 3: Cross multiply
    19,660.20x = 27,140.34 × 11,591.40
  4. Step 4: Simplify right side
    19,660.20x = 314,594,537.08
  5. Step 5: Solve for x
    x = 314,594,537.08/19,660.20
  6. Step 6: Final answer
    x = 16,001.59

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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.