Home / 39,763.16-54,874.68-21,859.64

Finding the Fourth Proportional to 39,763.16, 54,874.68 and 21,859.64

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Solution

The fourth proportional to 39,763.16, 54,874.68 and 21,859.64 is: 30,167.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.16 : 54,874.68 = 21,859.64 : x
  2. Step 2: Convert to fraction form
    39,763.16/54,874.68 = 21,859.64/x
  3. Step 3: Cross multiply
    39,763.16x = 54,874.68 × 21,859.64
  4. Step 4: Simplify right side
    39,763.16x = 1,199,540,749.92
  5. Step 5: Solve for x
    x = 1,199,540,749.92/39,763.16
  6. Step 6: Final answer
    x = 30,167.14

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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.