Home / 39,580.25-54,617.90-21,672.36

Finding the Fourth Proportional to 39,580.25, 54,617.90 and 21,672.36

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Solution

The fourth proportional to 39,580.25, 54,617.90 and 21,672.36 is: 29,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,580.25 : 54,617.90 = 21,672.36 : x
  2. Step 2: Convert to fraction form
    39,580.25/54,617.90 = 21,672.36/x
  3. Step 3: Cross multiply
    39,580.25x = 54,617.90 × 21,672.36
  4. Step 4: Simplify right side
    39,580.25x = 1,183,698,682.88
  5. Step 5: Solve for x
    x = 1,183,698,682.88/39,580.25
  6. Step 6: Final answer
    x = 29,906.30

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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.