Home / 39,738.62-54,838.68-21,833.30

Finding the Fourth Proportional to 39,738.62, 54,838.68 and 21,833.30

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Solution

The fourth proportional to 39,738.62, 54,838.68 and 21,833.30 is: 30,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,738.62 : 54,838.68 = 21,833.30 : x
  2. Step 2: Convert to fraction form
    39,738.62/54,838.68 = 21,833.30/x
  3. Step 3: Cross multiply
    39,738.62x = 54,838.68 × 21,833.30
  4. Step 4: Simplify right side
    39,738.62x = 1,197,309,352.04
  5. Step 5: Solve for x
    x = 1,197,309,352.04/39,738.62
  6. Step 6: Final answer
    x = 30,129.62

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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.