Home / 39,544.34-54,569.86-21,638.14

Finding the Fourth Proportional to 39,544.34, 54,569.86 and 21,638.14

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Solution

The fourth proportional to 39,544.34, 54,569.86 and 21,638.14 is: 29,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,544.34 : 54,569.86 = 21,638.14 : x
  2. Step 2: Convert to fraction form
    39,544.34/54,569.86 = 21,638.14/x
  3. Step 3: Cross multiply
    39,544.34x = 54,569.86 × 21,638.14
  4. Step 4: Simplify right side
    39,544.34x = 1,180,790,079.94
  5. Step 5: Solve for x
    x = 1,180,790,079.94/39,544.34
  6. Step 6: Final answer
    x = 29,859.90

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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.