Home / 20,199.68-30,301.14-7,051.76

Finding the Fourth Proportional to 20,199.68, 30,301.14 and 7,051.76

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Solution

The fourth proportional to 20,199.68, 30,301.14 and 7,051.76 is: 10,578.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.68 : 30,301.14 = 7,051.76 : x
  2. Step 2: Convert to fraction form
    20,199.68/30,301.14 = 7,051.76/x
  3. Step 3: Cross multiply
    20,199.68x = 30,301.14 × 7,051.76
  4. Step 4: Simplify right side
    20,199.68x = 213,676,367.01
  5. Step 5: Solve for x
    x = 213,676,367.01/20,199.68
  6. Step 6: Final answer
    x = 10,578.21

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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.