Home / 21,886.70-32,781.45-16,940.30

Finding the Fourth Proportional to 21,886.70, 32,781.45 and 16,940.30

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Solution

The fourth proportional to 21,886.70, 32,781.45 and 16,940.30 is: 25,372.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,886.70 : 32,781.45 = 16,940.30 : x
  2. Step 2: Convert to fraction form
    21,886.70/32,781.45 = 16,940.30/x
  3. Step 3: Cross multiply
    21,886.70x = 32,781.45 × 16,940.30
  4. Step 4: Simplify right side
    21,886.70x = 555,327,597.44
  5. Step 5: Solve for x
    x = 555,327,597.44/21,886.70
  6. Step 6: Final answer
    x = 25,372.83

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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.