Home / 19,391.62-29,030.01-11,972.23

Finding the Fourth Proportional to 19,391.62, 29,030.01 and 11,972.23

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Solution

The fourth proportional to 19,391.62, 29,030.01 and 11,972.23 is: 17,922.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,391.62 : 29,030.01 = 11,972.23 : x
  2. Step 2: Convert to fraction form
    19,391.62/29,030.01 = 11,972.23/x
  3. Step 3: Cross multiply
    19,391.62x = 29,030.01 × 11,972.23
  4. Step 4: Simplify right side
    19,391.62x = 347,553,956.62
  5. Step 5: Solve for x
    x = 347,553,956.62/19,391.62
  6. Step 6: Final answer
    x = 17,922.89

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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.