Home / 36,918.48-55,344.78-13,539.48

Finding the Fourth Proportional to 36,918.48, 55,344.78 and 13,539.48

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Solution

The fourth proportional to 36,918.48, 55,344.78 and 13,539.48 is: 20,297.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,918.48 : 55,344.78 = 13,539.48 : x
  2. Step 2: Convert to fraction form
    36,918.48/55,344.78 = 13,539.48/x
  3. Step 3: Cross multiply
    36,918.48x = 55,344.78 × 13,539.48
  4. Step 4: Simplify right side
    36,918.48x = 749,339,541.91
  5. Step 5: Solve for x
    x = 749,339,541.91/36,918.48
  6. Step 6: Final answer
    x = 20,297.14

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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.