Home / 21,942.60-32,919.10-7,151.60

Finding the Fourth Proportional to 21,942.60, 32,919.10 and 7,151.60

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Solution

The fourth proportional to 21,942.60, 32,919.10 and 7,151.60 is: 10,729.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942.60 : 32,919.10 = 7,151.60 : x
  2. Step 2: Convert to fraction form
    21,942.60/32,919.10 = 7,151.60/x
  3. Step 3: Cross multiply
    21,942.60x = 32,919.10 × 7,151.60
  4. Step 4: Simplify right side
    21,942.60x = 235,424,235.56
  5. Step 5: Solve for x
    x = 235,424,235.56/21,942.60
  6. Step 6: Final answer
    x = 10,729.09

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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.