Home / 39,544.13-54,570.42-21,638.94

Finding the Fourth Proportional to 39,544.13, 54,570.42 and 21,638.94

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Solution

The fourth proportional to 39,544.13, 54,570.42 and 21,638.94 is: 29,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,544.13 : 54,570.42 = 21,638.94 : x
  2. Step 2: Convert to fraction form
    39,544.13/54,570.42 = 21,638.94/x
  3. Step 3: Cross multiply
    39,544.13x = 54,570.42 × 21,638.94
  4. Step 4: Simplify right side
    39,544.13x = 1,180,846,044.15
  5. Step 5: Solve for x
    x = 1,180,846,044.15/39,544.13
  6. Step 6: Final answer
    x = 29,861.47

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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.