Home / 39,272.56-54,195.32-21,367.64

Finding the Fourth Proportional to 39,272.56, 54,195.32 and 21,367.64

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Solution

The fourth proportional to 39,272.56, 54,195.32 and 21,367.64 is: 29,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,272.56 : 54,195.32 = 21,367.64 : x
  2. Step 2: Convert to fraction form
    39,272.56/54,195.32 = 21,367.64/x
  3. Step 3: Cross multiply
    39,272.56x = 54,195.32 × 21,367.64
  4. Step 4: Simplify right side
    39,272.56x = 1,158,026,087.44
  5. Step 5: Solve for x
    x = 1,158,026,087.44/39,272.56
  6. Step 6: Final answer
    x = 29,486.90

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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.