Home / 39,601.40-54,650.10-21,696.56

Finding the Fourth Proportional to 39,601.40, 54,650.10 and 21,696.56

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Solution

The fourth proportional to 39,601.40, 54,650.10 and 21,696.56 is: 29,941.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,601.40 : 54,650.10 = 21,696.56 : x
  2. Step 2: Convert to fraction form
    39,601.40/54,650.10 = 21,696.56/x
  3. Step 3: Cross multiply
    39,601.40x = 54,650.10 × 21,696.56
  4. Step 4: Simplify right side
    39,601.40x = 1,185,719,173.66
  5. Step 5: Solve for x
    x = 1,185,719,173.66/39,601.40
  6. Step 6: Final answer
    x = 29,941.34

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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.