Home / 19,853.20-27,397.98-11,238.69

Finding the Fourth Proportional to 19,853.20, 27,397.98 and 11,238.69

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Solution

The fourth proportional to 19,853.20, 27,397.98 and 11,238.69 is: 15,509.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,853.20 : 27,397.98 = 11,238.69 : x
  2. Step 2: Convert to fraction form
    19,853.20/27,397.98 = 11,238.69/x
  3. Step 3: Cross multiply
    19,853.20x = 27,397.98 × 11,238.69
  4. Step 4: Simplify right side
    19,853.20x = 307,917,403.85
  5. Step 5: Solve for x
    x = 307,917,403.85/19,853.20
  6. Step 6: Final answer
    x = 15,509.71

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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.