Home / 39,650.45-54,718.36-21,744.38

Finding the Fourth Proportional to 39,650.45, 54,718.36 and 21,744.38

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Solution

The fourth proportional to 39,650.45, 54,718.36 and 21,744.38 is: 30,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,650.45 : 54,718.36 = 21,744.38 : x
  2. Step 2: Convert to fraction form
    39,650.45/54,718.36 = 21,744.38/x
  3. Step 3: Cross multiply
    39,650.45x = 54,718.36 × 21,744.38
  4. Step 4: Simplify right side
    39,650.45x = 1,189,816,812.82
  5. Step 5: Solve for x
    x = 1,189,816,812.82/39,650.45
  6. Step 6: Final answer
    x = 30,007.65

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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.