Home / 21,880.96-32,821.82-6,887.71

Finding the Fourth Proportional to 21,880.96, 32,821.82 and 6,887.71

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Solution

The fourth proportional to 21,880.96, 32,821.82 and 6,887.71 is: 10,331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,880.96 : 32,821.82 = 6,887.71 : x
  2. Step 2: Convert to fraction form
    21,880.96/32,821.82 = 6,887.71/x
  3. Step 3: Cross multiply
    21,880.96x = 32,821.82 × 6,887.71
  4. Step 4: Simplify right side
    21,880.96x = 226,067,177.83
  5. Step 5: Solve for x
    x = 226,067,177.83/21,880.96
  6. Step 6: Final answer
    x = 10,331.68

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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.