Home / 21,424.26-29,565.48-11,992.83

Finding the Fourth Proportional to 21,424.26, 29,565.48 and 11,992.83

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Solution

The fourth proportional to 21,424.26, 29,565.48 and 11,992.83 is: 16,550.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.26 : 29,565.48 = 11,992.83 : x
  2. Step 2: Convert to fraction form
    21,424.26/29,565.48 = 11,992.83/x
  3. Step 3: Cross multiply
    21,424.26x = 29,565.48 × 11,992.83
  4. Step 4: Simplify right side
    21,424.26x = 354,573,775.51
  5. Step 5: Solve for x
    x = 354,573,775.51/21,424.26
  6. Step 6: Final answer
    x = 16,550.11

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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.