Home / 39,753.96-54,858.80-21,847.90

Finding the Fourth Proportional to 39,753.96, 54,858.80 and 21,847.90

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Solution

The fourth proportional to 39,753.96, 54,858.80 and 21,847.90 is: 30,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,753.96 : 54,858.80 = 21,847.90 : x
  2. Step 2: Convert to fraction form
    39,753.96/54,858.80 = 21,847.90/x
  3. Step 3: Cross multiply
    39,753.96x = 54,858.80 × 21,847.90
  4. Step 4: Simplify right side
    39,753.96x = 1,198,549,576.52
  5. Step 5: Solve for x
    x = 1,198,549,576.52/39,753.96
  6. Step 6: Final answer
    x = 30,149.19

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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.