Home / 39,735.15-54,834.74-21,829.69

Finding the Fourth Proportional to 39,735.15, 54,834.74 and 21,829.69

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Solution

The fourth proportional to 39,735.15, 54,834.74 and 21,829.69 is: 30,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,735.15 : 54,834.74 = 21,829.69 : x
  2. Step 2: Convert to fraction form
    39,735.15/54,834.74 = 21,829.69/x
  3. Step 3: Cross multiply
    39,735.15x = 54,834.74 × 21,829.69
  4. Step 4: Simplify right side
    39,735.15x = 1,197,025,375.43
  5. Step 5: Solve for x
    x = 1,197,025,375.43/39,735.15
  6. Step 6: Final answer
    x = 30,125.10

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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.