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Finding the Fourth Proportional to 21,954.54, 32,948.17 and 13,646.68

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Solution

The fourth proportional to 21,954.54, 32,948.17 and 13,646.68 is: 20,480.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.54 : 32,948.17 = 13,646.68 : x
  2. Step 2: Convert to fraction form
    21,954.54/32,948.17 = 13,646.68/x
  3. Step 3: Cross multiply
    21,954.54x = 32,948.17 × 13,646.68
  4. Step 4: Simplify right side
    21,954.54x = 449,633,016.09
  5. Step 5: Solve for x
    x = 449,633,016.09/21,954.54
  6. Step 6: Final answer
    x = 20,480.18

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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.