Home / 20,209.82-30,301.02-7,055

Finding the Fourth Proportional to 20,209.82, 30,301.02 and 7,055

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Solution

The fourth proportional to 20,209.82, 30,301.02 and 7,055 is: 10,577.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,209.82 : 30,301.02 = 7,055 : x
  2. Step 2: Convert to fraction form
    20,209.82/30,301.02 = 7,055/x
  3. Step 3: Cross multiply
    20,209.82x = 30,301.02 × 7,055
  4. Step 4: Simplify right side
    20,209.82x = 213,773,696.10
  5. Step 5: Solve for x
    x = 213,773,696.10/20,209.82
  6. Step 6: Final answer
    x = 10,577.71

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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.