Home / 20,201.07-30,308.90-7,055.38

Finding the Fourth Proportional to 20,201.07, 30,308.90 and 7,055.38

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Solution

The fourth proportional to 20,201.07, 30,308.90 and 7,055.38 is: 10,585.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.07 : 30,308.90 = 7,055.38 : x
  2. Step 2: Convert to fraction form
    20,201.07/30,308.90 = 7,055.38/x
  3. Step 3: Cross multiply
    20,201.07x = 30,308.90 × 7,055.38
  4. Step 4: Simplify right side
    20,201.07x = 213,840,695.83
  5. Step 5: Solve for x
    x = 213,840,695.83/20,201.07
  6. Step 6: Final answer
    x = 10,585.61

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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.