Home / 21,535.48-29,719.06-11,976.24

Finding the Fourth Proportional to 21,535.48, 29,719.06 and 11,976.24

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Solution

The fourth proportional to 21,535.48, 29,719.06 and 11,976.24 is: 16,527.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,535.48 : 29,719.06 = 11,976.24 : x
  2. Step 2: Convert to fraction form
    21,535.48/29,719.06 = 11,976.24/x
  3. Step 3: Cross multiply
    21,535.48x = 29,719.06 × 11,976.24
  4. Step 4: Simplify right side
    21,535.48x = 355,922,676.64
  5. Step 5: Solve for x
    x = 355,922,676.64/21,535.48
  6. Step 6: Final answer
    x = 16,527.27

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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.