Home / 39,649.80-54,716.58-21,744.34

Finding the Fourth Proportional to 39,649.80, 54,716.58 and 21,744.34

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Solution

The fourth proportional to 39,649.80, 54,716.58 and 21,744.34 is: 30,007.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,649.80 : 54,716.58 = 21,744.34 : x
  2. Step 2: Convert to fraction form
    39,649.80/54,716.58 = 21,744.34/x
  3. Step 3: Cross multiply
    39,649.80x = 54,716.58 × 21,744.34
  4. Step 4: Simplify right side
    39,649.80x = 1,189,775,919.16
  5. Step 5: Solve for x
    x = 1,189,775,919.16/39,649.80
  6. Step 6: Final answer
    x = 30,007.11

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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.