Home / 39,629.99-54,691.94-21,725.04

Finding the Fourth Proportional to 39,629.99, 54,691.94 and 21,725.04

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Solution

The fourth proportional to 39,629.99, 54,691.94 and 21,725.04 is: 29,981.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,629.99 : 54,691.94 = 21,725.04 : x
  2. Step 2: Convert to fraction form
    39,629.99/54,691.94 = 21,725.04/x
  3. Step 3: Cross multiply
    39,629.99x = 54,691.94 × 21,725.04
  4. Step 4: Simplify right side
    39,629.99x = 1,188,184,475.55
  5. Step 5: Solve for x
    x = 1,188,184,475.55/39,629.99
  6. Step 6: Final answer
    x = 29,981.96

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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.