Home / 21,951.33-32,930.40-7,156.80

Finding the Fourth Proportional to 21,951.33, 32,930.40 and 7,156.80

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Solution

The fourth proportional to 21,951.33, 32,930.40 and 7,156.80 is: 10,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,951.33 : 32,930.40 = 7,156.80 : x
  2. Step 2: Convert to fraction form
    21,951.33/32,930.40 = 7,156.80/x
  3. Step 3: Cross multiply
    21,951.33x = 32,930.40 × 7,156.80
  4. Step 4: Simplify right side
    21,951.33x = 235,676,286.72
  5. Step 5: Solve for x
    x = 235,676,286.72/21,951.33
  6. Step 6: Final answer
    x = 10,736.31

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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.