Home / 39,763.20-54,873.99-21,859.88

Finding the Fourth Proportional to 39,763.20, 54,873.99 and 21,859.88

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Solution

The fourth proportional to 39,763.20, 54,873.99 and 21,859.88 is: 30,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.20 : 54,873.99 = 21,859.88 : x
  2. Step 2: Convert to fraction form
    39,763.20/54,873.99 = 21,859.88/x
  3. Step 3: Cross multiply
    39,763.20x = 54,873.99 × 21,859.88
  4. Step 4: Simplify right side
    39,763.20x = 1,199,538,562.15
  5. Step 5: Solve for x
    x = 1,199,538,562.15/39,763.20
  6. Step 6: Final answer
    x = 30,167.05

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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.