Home / 20,065.94-27,691.23-11,113.59

Finding the Fourth Proportional to 20,065.94, 27,691.23 and 11,113.59

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Solution

The fourth proportional to 20,065.94, 27,691.23 and 11,113.59 is: 15,336.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.94 : 27,691.23 = 11,113.59 : x
  2. Step 2: Convert to fraction form
    20,065.94/27,691.23 = 11,113.59/x
  3. Step 3: Cross multiply
    20,065.94x = 27,691.23 × 11,113.59
  4. Step 4: Simplify right side
    20,065.94x = 307,748,976.82
  5. Step 5: Solve for x
    x = 307,748,976.82/20,065.94
  6. Step 6: Final answer
    x = 15,336.88

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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.