Home / 21,489.60-32,222.79-8,338.44

Finding the Fourth Proportional to 21,489.60, 32,222.79 and 8,338.44

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Solution

The fourth proportional to 21,489.60, 32,222.79 and 8,338.44 is: 12,503.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.60 : 32,222.79 = 8,338.44 : x
  2. Step 2: Convert to fraction form
    21,489.60/32,222.79 = 8,338.44/x
  3. Step 3: Cross multiply
    21,489.60x = 32,222.79 × 8,338.44
  4. Step 4: Simplify right side
    21,489.60x = 268,687,801.05
  5. Step 5: Solve for x
    x = 268,687,801.05/21,489.60
  6. Step 6: Final answer
    x = 12,503.16

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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.