Home / 19,982.45-29,973.68-11,217.17

Finding the Fourth Proportional to 19,982.45, 29,973.68 and 11,217.17

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Solution

The fourth proportional to 19,982.45, 29,973.68 and 11,217.17 is: 16,825.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.45 : 29,973.68 = 11,217.17 : x
  2. Step 2: Convert to fraction form
    19,982.45/29,973.68 = 11,217.17/x
  3. Step 3: Cross multiply
    19,982.45x = 29,973.68 × 11,217.17
  4. Step 4: Simplify right side
    19,982.45x = 336,219,864.09
  5. Step 5: Solve for x
    x = 336,219,864.09/19,982.45
  6. Step 6: Final answer
    x = 16,825.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.