Home / 39,616.68-54,671.44-21,711.29

Finding the Fourth Proportional to 39,616.68, 54,671.44 and 21,711.29

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Solution

The fourth proportional to 39,616.68, 54,671.44 and 21,711.29 is: 29,961.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,616.68 : 54,671.44 = 21,711.29 : x
  2. Step 2: Convert to fraction form
    39,616.68/54,671.44 = 21,711.29/x
  3. Step 3: Cross multiply
    39,616.68x = 54,671.44 × 21,711.29
  4. Step 4: Simplify right side
    39,616.68x = 1,186,987,570.96
  5. Step 5: Solve for x
    x = 1,186,987,570.96/39,616.68
  6. Step 6: Final answer
    x = 29,961.81

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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.