Home / 27,343.86-40,918.32-18,912.06

Finding the Fourth Proportional to 27,343.86, 40,918.32 and 18,912.06

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Solution

The fourth proportional to 27,343.86, 40,918.32 and 18,912.06 is: 28,300.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,343.86 : 40,918.32 = 18,912.06 : x
  2. Step 2: Convert to fraction form
    27,343.86/40,918.32 = 18,912.06/x
  3. Step 3: Cross multiply
    27,343.86x = 40,918.32 × 18,912.06
  4. Step 4: Simplify right side
    27,343.86x = 773,849,722.94
  5. Step 5: Solve for x
    x = 773,849,722.94/27,343.86
  6. Step 6: Final answer
    x = 28,300.68

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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.