Home / 39,338.88-54,287.34-21,433.82

Finding the Fourth Proportional to 39,338.88, 54,287.34 and 21,433.82

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Solution

The fourth proportional to 39,338.88, 54,287.34 and 21,433.82 is: 29,578.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,338.88 : 54,287.34 = 21,433.82 : x
  2. Step 2: Convert to fraction form
    39,338.88/54,287.34 = 21,433.82/x
  3. Step 3: Cross multiply
    39,338.88x = 54,287.34 × 21,433.82
  4. Step 4: Simplify right side
    39,338.88x = 1,163,585,073.84
  5. Step 5: Solve for x
    x = 1,163,585,073.84/39,338.88
  6. Step 6: Final answer
    x = 29,578.50

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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.