Home / 21,906.20-32,860.36-6,111.20

Finding the Fourth Proportional to 21,906.20, 32,860.36 and 6,111.20

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Solution

The fourth proportional to 21,906.20, 32,860.36 and 6,111.20 is: 9,167.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,906.20 : 32,860.36 = 6,111.20 : x
  2. Step 2: Convert to fraction form
    21,906.20/32,860.36 = 6,111.20/x
  3. Step 3: Cross multiply
    21,906.20x = 32,860.36 × 6,111.20
  4. Step 4: Simplify right side
    21,906.20x = 200,816,232.03
  5. Step 5: Solve for x
    x = 200,816,232.03/21,906.20
  6. Step 6: Final answer
    x = 9,167.10

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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.