Home / 25,406.05-38,095.33-20,174.72

Finding the Fourth Proportional to 25,406.05, 38,095.33 and 20,174.72

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Solution

The fourth proportional to 25,406.05, 38,095.33 and 20,174.72 is: 30,251.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,406.05 : 38,095.33 = 20,174.72 : x
  2. Step 2: Convert to fraction form
    25,406.05/38,095.33 = 20,174.72/x
  3. Step 3: Cross multiply
    25,406.05x = 38,095.33 × 20,174.72
  4. Step 4: Simplify right side
    25,406.05x = 768,562,375.14
  5. Step 5: Solve for x
    x = 768,562,375.14/25,406.05
  6. Step 6: Final answer
    x = 30,251.16

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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.