Home / 39,601.66-54,650.13-21,696.64

Finding the Fourth Proportional to 39,601.66, 54,650.13 and 21,696.64

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Solution

The fourth proportional to 39,601.66, 54,650.13 and 21,696.64 is: 29,941.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,601.66 : 54,650.13 = 21,696.64 : x
  2. Step 2: Convert to fraction form
    39,601.66/54,650.13 = 21,696.64/x
  3. Step 3: Cross multiply
    39,601.66x = 54,650.13 × 21,696.64
  4. Step 4: Simplify right side
    39,601.66x = 1,185,724,196.56
  5. Step 5: Solve for x
    x = 1,185,724,196.56/39,601.66
  6. Step 6: Final answer
    x = 29,941.28

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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.