Home / 39,319.52-54,260.56-21,414.48

Finding the Fourth Proportional to 39,319.52, 54,260.56 and 21,414.48

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Solution

The fourth proportional to 39,319.52, 54,260.56 and 21,414.48 is: 29,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,319.52 : 54,260.56 = 21,414.48 : x
  2. Step 2: Convert to fraction form
    39,319.52/54,260.56 = 21,414.48/x
  3. Step 3: Cross multiply
    39,319.52x = 54,260.56 × 21,414.48
  4. Step 4: Simplify right side
    39,319.52x = 1,161,961,676.91
  5. Step 5: Solve for x
    x = 1,161,961,676.91/39,319.52
  6. Step 6: Final answer
    x = 29,551.78

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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.