Home / 19,984.70-27,582.72-11,920.34

Finding the Fourth Proportional to 19,984.70, 27,582.72 and 11,920.34

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Solution

The fourth proportional to 19,984.70, 27,582.72 and 11,920.34 is: 16,452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.70 : 27,582.72 = 11,920.34 : x
  2. Step 2: Convert to fraction form
    19,984.70/27,582.72 = 11,920.34/x
  3. Step 3: Cross multiply
    19,984.70x = 27,582.72 × 11,920.34
  4. Step 4: Simplify right side
    19,984.70x = 328,795,400.52
  5. Step 5: Solve for x
    x = 328,795,400.52/19,984.70
  6. Step 6: Final answer
    x = 16,452.36

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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.