Home / 39,763.68-54,874.56-21,859.44

Finding the Fourth Proportional to 39,763.68, 54,874.56 and 21,859.44

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Solution

The fourth proportional to 39,763.68, 54,874.56 and 21,859.44 is: 30,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.68 : 54,874.56 = 21,859.44 : x
  2. Step 2: Convert to fraction form
    39,763.68/54,874.56 = 21,859.44/x
  3. Step 3: Cross multiply
    39,763.68x = 54,874.56 × 21,859.44
  4. Step 4: Simplify right side
    39,763.68x = 1,199,527,151.85
  5. Step 5: Solve for x
    x = 1,199,527,151.85/39,763.68
  6. Step 6: Final answer
    x = 30,166.40

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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.