Home / 18,301.85-27,450.32-5,155.37

Finding the Fourth Proportional to 18,301.85, 27,450.32 and 5,155.37

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Solution

The fourth proportional to 18,301.85, 27,450.32 and 5,155.37 is: 7,732.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.85 : 27,450.32 = 5,155.37 : x
  2. Step 2: Convert to fraction form
    18,301.85/27,450.32 = 5,155.37/x
  3. Step 3: Cross multiply
    18,301.85x = 27,450.32 × 5,155.37
  4. Step 4: Simplify right side
    18,301.85x = 141,516,393.19
  5. Step 5: Solve for x
    x = 141,516,393.19/18,301.85
  6. Step 6: Final answer
    x = 7,732.36

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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.