Home / 39,520.36-54,535.14-21,614.44

Finding the Fourth Proportional to 39,520.36, 54,535.14 and 21,614.44

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Solution

The fourth proportional to 39,520.36, 54,535.14 and 21,614.44 is: 29,826.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,520.36 : 54,535.14 = 21,614.44 : x
  2. Step 2: Convert to fraction form
    39,520.36/54,535.14 = 21,614.44/x
  3. Step 3: Cross multiply
    39,520.36x = 54,535.14 × 21,614.44
  4. Step 4: Simplify right side
    39,520.36x = 1,178,746,511.42
  5. Step 5: Solve for x
    x = 1,178,746,511.42/39,520.36
  6. Step 6: Final answer
    x = 29,826.31

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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.