Home / 39,616.35-54,669.32-21,711.03

Finding the Fourth Proportional to 39,616.35, 54,669.32 and 21,711.03

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Solution

The fourth proportional to 39,616.35, 54,669.32 and 21,711.03 is: 29,960.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,616.35 : 54,669.32 = 21,711.03 : x
  2. Step 2: Convert to fraction form
    39,616.35/54,669.32 = 21,711.03/x
  3. Step 3: Cross multiply
    39,616.35x = 54,669.32 × 21,711.03
  4. Step 4: Simplify right side
    39,616.35x = 1,186,927,164.20
  5. Step 5: Solve for x
    x = 1,186,927,164.20/39,616.35
  6. Step 6: Final answer
    x = 29,960.54

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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.