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Finding the Fourth Proportional to 21,673.17, 32,517.59 and 8,518.23

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Solution

The fourth proportional to 21,673.17, 32,517.59 and 8,518.23 is: 12,780.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.17 : 32,517.59 = 8,518.23 : x
  2. Step 2: Convert to fraction form
    21,673.17/32,517.59 = 8,518.23/x
  3. Step 3: Cross multiply
    21,673.17x = 32,517.59 × 8,518.23
  4. Step 4: Simplify right side
    21,673.17x = 276,992,268.07
  5. Step 5: Solve for x
    x = 276,992,268.07/21,673.17
  6. Step 6: Final answer
    x = 12,780.42

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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.