Home / 21,483.13-29,646.62-11,922.77

Finding the Fourth Proportional to 21,483.13, 29,646.62 and 11,922.77

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Solution

The fourth proportional to 21,483.13, 29,646.62 and 11,922.77 is: 16,453.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,483.13 : 29,646.62 = 11,922.77 : x
  2. Step 2: Convert to fraction form
    21,483.13/29,646.62 = 11,922.77/x
  3. Step 3: Cross multiply
    21,483.13x = 29,646.62 × 11,922.77
  4. Step 4: Simplify right side
    21,483.13x = 353,469,831.54
  5. Step 5: Solve for x
    x = 353,469,831.54/21,483.13
  6. Step 6: Final answer
    x = 16,453.37

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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.