Home / 39,650.57-54,718.53-21,744.51

Finding the Fourth Proportional to 39,650.57, 54,718.53 and 21,744.51

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Solution

The fourth proportional to 39,650.57, 54,718.53 and 21,744.51 is: 30,007.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,650.57 : 54,718.53 = 21,744.51 : x
  2. Step 2: Convert to fraction form
    39,650.57/54,718.53 = 21,744.51/x
  3. Step 3: Cross multiply
    39,650.57x = 54,718.53 × 21,744.51
  4. Step 4: Simplify right side
    39,650.57x = 1,189,827,622.77
  5. Step 5: Solve for x
    x = 1,189,827,622.77/39,650.57
  6. Step 6: Final answer
    x = 30,007.83

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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.