Home / 19,879.93-27,434.52-10,805.29

Finding the Fourth Proportional to 19,879.93, 27,434.52 and 10,805.29

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Solution

The fourth proportional to 19,879.93, 27,434.52 and 10,805.29 is: 14,911.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879.93 : 27,434.52 = 10,805.29 : x
  2. Step 2: Convert to fraction form
    19,879.93/27,434.52 = 10,805.29/x
  3. Step 3: Cross multiply
    19,879.93x = 27,434.52 × 10,805.29
  4. Step 4: Simplify right side
    19,879.93x = 296,437,944.61
  5. Step 5: Solve for x
    x = 296,437,944.61/19,879.93
  6. Step 6: Final answer
    x = 14,911.42

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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.