Home / 18,531.16-27,792.26-5,379.96

Finding the Fourth Proportional to 18,531.16, 27,792.26 and 5,379.96

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Solution

The fourth proportional to 18,531.16, 27,792.26 and 5,379.96 is: 8,068.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.16 : 27,792.26 = 5,379.96 : x
  2. Step 2: Convert to fraction form
    18,531.16/27,792.26 = 5,379.96/x
  3. Step 3: Cross multiply
    18,531.16x = 27,792.26 × 5,379.96
  4. Step 4: Simplify right side
    18,531.16x = 149,521,247.11
  5. Step 5: Solve for x
    x = 149,521,247.11/18,531.16
  6. Step 6: Final answer
    x = 8,068.64

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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.