Home / 21,819.42-32,729.12-7,028.62

Finding the Fourth Proportional to 21,819.42, 32,729.12 and 7,028.62

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Solution

The fourth proportional to 21,819.42, 32,729.12 and 7,028.62 is: 10,542.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.42 : 32,729.12 = 7,028.62 : x
  2. Step 2: Convert to fraction form
    21,819.42/32,729.12 = 7,028.62/x
  3. Step 3: Cross multiply
    21,819.42x = 32,729.12 × 7,028.62
  4. Step 4: Simplify right side
    21,819.42x = 230,040,483.16
  5. Step 5: Solve for x
    x = 230,040,483.16/21,819.42
  6. Step 6: Final answer
    x = 10,542.92

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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.