Home / 21,940.80-32,886.90-9,458.70

Finding the Fourth Proportional to 21,940.80, 32,886.90 and 9,458.70

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Solution

The fourth proportional to 21,940.80, 32,886.90 and 9,458.70 is: 14,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,940.80 : 32,886.90 = 9,458.70 : x
  2. Step 2: Convert to fraction form
    21,940.80/32,886.90 = 9,458.70/x
  3. Step 3: Cross multiply
    21,940.80x = 32,886.90 × 9,458.70
  4. Step 4: Simplify right side
    21,940.80x = 311,067,321.03
  5. Step 5: Solve for x
    x = 311,067,321.03/21,940.80
  6. Step 6: Final answer
    x = 14,177.57

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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.