Home / 19,976.13-27,567-11,023.55

Finding the Fourth Proportional to 19,976.13, 27,567 and 11,023.55

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Solution

The fourth proportional to 19,976.13, 27,567 and 11,023.55 is: 15,212.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.13 : 27,567 = 11,023.55 : x
  2. Step 2: Convert to fraction form
    19,976.13/27,567 = 11,023.55/x
  3. Step 3: Cross multiply
    19,976.13x = 27,567 × 11,023.55
  4. Step 4: Simplify right side
    19,976.13x = 303,886,202.85
  5. Step 5: Solve for x
    x = 303,886,202.85/19,976.13
  6. Step 6: Final answer
    x = 15,212.47

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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.