Home / 39,380.44-54,344.30-21,475.05

Finding the Fourth Proportional to 39,380.44, 54,344.30 and 21,475.05

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Solution

The fourth proportional to 39,380.44, 54,344.30 and 21,475.05 is: 29,635.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,380.44 : 54,344.30 = 21,475.05 : x
  2. Step 2: Convert to fraction form
    39,380.44/54,344.30 = 21,475.05/x
  3. Step 3: Cross multiply
    39,380.44x = 54,344.30 × 21,475.05
  4. Step 4: Simplify right side
    39,380.44x = 1,167,046,559.72
  5. Step 5: Solve for x
    x = 1,167,046,559.72/39,380.44
  6. Step 6: Final answer
    x = 29,635.18

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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.