Home / 39,854.80-54,999.98-21,950.43

Finding the Fourth Proportional to 39,854.80, 54,999.98 and 21,950.43

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Solution

The fourth proportional to 39,854.80, 54,999.98 and 21,950.43 is: 30,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,854.80 : 54,999.98 = 21,950.43 : x
  2. Step 2: Convert to fraction form
    39,854.80/54,999.98 = 21,950.43/x
  3. Step 3: Cross multiply
    39,854.80x = 54,999.98 × 21,950.43
  4. Step 4: Simplify right side
    39,854.80x = 1,207,273,210.99
  5. Step 5: Solve for x
    x = 1,207,273,210.99/39,854.80
  6. Step 6: Final answer
    x = 30,291.79

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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.