Home / 19,941.81-27,521.55-11,983.83

Finding the Fourth Proportional to 19,941.81, 27,521.55 and 11,983.83

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Solution

The fourth proportional to 19,941.81, 27,521.55 and 11,983.83 is: 16,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.81 : 27,521.55 = 11,983.83 : x
  2. Step 2: Convert to fraction form
    19,941.81/27,521.55 = 11,983.83/x
  3. Step 3: Cross multiply
    19,941.81x = 27,521.55 × 11,983.83
  4. Step 4: Simplify right side
    19,941.81x = 329,813,576.54
  5. Step 5: Solve for x
    x = 329,813,576.54/19,941.81
  6. Step 6: Final answer
    x = 16,538.80

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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.