Home / 39,792.68-54,913.62-21,887.24

Finding the Fourth Proportional to 39,792.68, 54,913.62 and 21,887.24

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Solution

The fourth proportional to 39,792.68, 54,913.62 and 21,887.24 is: 30,204.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,792.68 : 54,913.62 = 21,887.24 : x
  2. Step 2: Convert to fraction form
    39,792.68/54,913.62 = 21,887.24/x
  3. Step 3: Cross multiply
    39,792.68x = 54,913.62 × 21,887.24
  4. Step 4: Simplify right side
    39,792.68x = 1,201,907,580.21
  5. Step 5: Solve for x
    x = 1,201,907,580.21/39,792.68
  6. Step 6: Final answer
    x = 30,204.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.