Home / 21,950.62-30,291.86-11,879.06

Finding the Fourth Proportional to 21,950.62, 30,291.86 and 11,879.06

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Solution

The fourth proportional to 21,950.62, 30,291.86 and 11,879.06 is: 16,393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,950.62 : 30,291.86 = 11,879.06 : x
  2. Step 2: Convert to fraction form
    21,950.62/30,291.86 = 11,879.06/x
  3. Step 3: Cross multiply
    21,950.62x = 30,291.86 × 11,879.06
  4. Step 4: Simplify right side
    21,950.62x = 359,838,804.26
  5. Step 5: Solve for x
    x = 359,838,804.26/21,950.62
  6. Step 6: Final answer
    x = 16,393.10

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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.