Home / 39,716.33-54,809.19-21,812.99

Finding the Fourth Proportional to 39,716.33, 54,809.19 and 21,812.99

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Solution

The fourth proportional to 39,716.33, 54,809.19 and 21,812.99 is: 30,102.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,716.33 : 54,809.19 = 21,812.99 : x
  2. Step 2: Convert to fraction form
    39,716.33/54,809.19 = 21,812.99/x
  3. Step 3: Cross multiply
    39,716.33x = 54,809.19 × 21,812.99
  4. Step 4: Simplify right side
    39,716.33x = 1,195,552,039.33
  5. Step 5: Solve for x
    x = 1,195,552,039.33/39,716.33
  6. Step 6: Final answer
    x = 30,102.28

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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.