Home / 39,792.34-54,912.33-21,887.34

Finding the Fourth Proportional to 39,792.34, 54,912.33 and 21,887.34

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Solution

The fourth proportional to 39,792.34, 54,912.33 and 21,887.34 is: 30,203.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,792.34 : 54,912.33 = 21,887.34 : x
  2. Step 2: Convert to fraction form
    39,792.34/54,912.33 = 21,887.34/x
  3. Step 3: Cross multiply
    39,792.34x = 54,912.33 × 21,887.34
  4. Step 4: Simplify right side
    39,792.34x = 1,201,884,785.42
  5. Step 5: Solve for x
    x = 1,201,884,785.42/39,792.34
  6. Step 6: Final answer
    x = 30,203.92

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1.5x scale

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.