Home / 39,648.69-54,716.77-21,744.35

Finding the Fourth Proportional to 39,648.69, 54,716.77 and 21,744.35

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Solution

The fourth proportional to 39,648.69, 54,716.77 and 21,744.35 is: 30,008.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,648.69 : 54,716.77 = 21,744.35 : x
  2. Step 2: Convert to fraction form
    39,648.69/54,716.77 = 21,744.35/x
  3. Step 3: Cross multiply
    39,648.69x = 54,716.77 × 21,744.35
  4. Step 4: Simplify right side
    39,648.69x = 1,189,780,215.44
  5. Step 5: Solve for x
    x = 1,189,780,215.44/39,648.69
  6. Step 6: Final answer
    x = 30,008.06

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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.