Home / 39,701.60-54,787.96-21,796.88

Finding the Fourth Proportional to 39,701.60, 54,787.96 and 21,796.88

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Solution

The fourth proportional to 39,701.60, 54,787.96 and 21,796.88 is: 30,079.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,701.60 : 54,787.96 = 21,796.88 : x
  2. Step 2: Convert to fraction form
    39,701.60/54,787.96 = 21,796.88/x
  3. Step 3: Cross multiply
    39,701.60x = 54,787.96 × 21,796.88
  4. Step 4: Simplify right side
    39,701.60x = 1,194,206,589.56
  5. Step 5: Solve for x
    x = 1,194,206,589.56/39,701.60
  6. Step 6: Final answer
    x = 30,079.56

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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.