Home / 39,318.39-54,260.34-21,414.36

Finding the Fourth Proportional to 39,318.39, 54,260.34 and 21,414.36

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Solution

The fourth proportional to 39,318.39, 54,260.34 and 21,414.36 is: 29,552.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318.39 : 54,260.34 = 21,414.36 : x
  2. Step 2: Convert to fraction form
    39,318.39/54,260.34 = 21,414.36/x
  3. Step 3: Cross multiply
    39,318.39x = 54,260.34 × 21,414.36
  4. Step 4: Simplify right side
    39,318.39x = 1,161,950,454.48
  5. Step 5: Solve for x
    x = 1,161,950,454.48/39,318.39
  6. Step 6: Final answer
    x = 29,552.34

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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.