Home / 21,954.96-32,920.92-11,399.19

Finding the Fourth Proportional to 21,954.96, 32,920.92 and 11,399.19

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Solution

The fourth proportional to 21,954.96, 32,920.92 and 11,399.19 is: 17,092.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.96 : 32,920.92 = 11,399.19 : x
  2. Step 2: Convert to fraction form
    21,954.96/32,920.92 = 11,399.19/x
  3. Step 3: Cross multiply
    21,954.96x = 32,920.92 × 11,399.19
  4. Step 4: Simplify right side
    21,954.96x = 375,271,822.05
  5. Step 5: Solve for x
    x = 375,271,822.05/21,954.96
  6. Step 6: Final answer
    x = 17,092.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.