Home / 39,796.14-54,920.52-21,890.82

Finding the Fourth Proportional to 39,796.14, 54,920.52 and 21,890.82

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Solution

The fourth proportional to 39,796.14, 54,920.52 and 21,890.82 is: 30,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,796.14 : 54,920.52 = 21,890.82 : x
  2. Step 2: Convert to fraction form
    39,796.14/54,920.52 = 21,890.82/x
  3. Step 3: Cross multiply
    39,796.14x = 54,920.52 × 21,890.82
  4. Step 4: Simplify right side
    39,796.14x = 1,202,255,217.63
  5. Step 5: Solve for x
    x = 1,202,255,217.63/39,796.14
  6. Step 6: Final answer
    x = 30,210.35

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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.