Home / 39,842.60-54,982.44-21,937.88

Finding the Fourth Proportional to 39,842.60, 54,982.44 and 21,937.88

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Solution

The fourth proportional to 39,842.60, 54,982.44 and 21,937.88 is: 30,274.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,842.60 : 54,982.44 = 21,937.88 : x
  2. Step 2: Convert to fraction form
    39,842.60/54,982.44 = 21,937.88/x
  3. Step 3: Cross multiply
    39,842.60x = 54,982.44 × 21,937.88
  4. Step 4: Simplify right side
    39,842.60x = 1,206,198,170.83
  5. Step 5: Solve for x
    x = 1,206,198,170.83/39,842.60
  6. Step 6: Final answer
    x = 30,274.08

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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.