Home / 39,776.96-54,893.52-21,872.60

Finding the Fourth Proportional to 39,776.96, 54,893.52 and 21,872.60

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Solution

The fourth proportional to 39,776.96, 54,893.52 and 21,872.60 is: 30,184.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,776.96 : 54,893.52 = 21,872.60 : x
  2. Step 2: Convert to fraction form
    39,776.96/54,893.52 = 21,872.60/x
  3. Step 3: Cross multiply
    39,776.96x = 54,893.52 × 21,872.60
  4. Step 4: Simplify right side
    39,776.96x = 1,200,664,005.55
  5. Step 5: Solve for x
    x = 1,200,664,005.55/39,776.96
  6. Step 6: Final answer
    x = 30,184.91

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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.