Home / 39,842.82-54,983.61-21,937.77

Finding the Fourth Proportional to 39,842.82, 54,983.61 and 21,937.77

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Solution

The fourth proportional to 39,842.82, 54,983.61 and 21,937.77 is: 30,274.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,842.82 : 54,983.61 = 21,937.77 : x
  2. Step 2: Convert to fraction form
    39,842.82/54,983.61 = 21,937.77/x
  3. Step 3: Cross multiply
    39,842.82x = 54,983.61 × 21,937.77
  4. Step 4: Simplify right side
    39,842.82x = 1,206,217,789.95
  5. Step 5: Solve for x
    x = 1,206,217,789.95/39,842.82
  6. Step 6: Final answer
    x = 30,274.41

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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.