Home / 21,781.57-32,672.37-6,199.20

Finding the Fourth Proportional to 21,781.57, 32,672.37 and 6,199.20

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Solution

The fourth proportional to 21,781.57, 32,672.37 and 6,199.20 is: 9,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781.57 : 32,672.37 = 6,199.20 : x
  2. Step 2: Convert to fraction form
    21,781.57/32,672.37 = 6,199.20/x
  3. Step 3: Cross multiply
    21,781.57x = 32,672.37 × 6,199.20
  4. Step 4: Simplify right side
    21,781.57x = 202,542,556.10
  5. Step 5: Solve for x
    x = 202,542,556.10/21,781.57
  6. Step 6: Final answer
    x = 9,298.80

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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.