Home / 39,764.14-54,873.12-21,859.03

Finding the Fourth Proportional to 39,764.14, 54,873.12 and 21,859.03

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Solution

The fourth proportional to 39,764.14, 54,873.12 and 21,859.03 is: 30,164.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,764.14 : 54,873.12 = 21,859.03 : x
  2. Step 2: Convert to fraction form
    39,764.14/54,873.12 = 21,859.03/x
  3. Step 3: Cross multiply
    39,764.14x = 54,873.12 × 21,859.03
  4. Step 4: Simplify right side
    39,764.14x = 1,199,473,033.86
  5. Step 5: Solve for x
    x = 1,199,473,033.86/39,764.14
  6. Step 6: Final answer
    x = 30,164.69

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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.