Home / 39,546.59-54,572.96-21,640.39

Finding the Fourth Proportional to 39,546.59, 54,572.96 and 21,640.39

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Solution

The fourth proportional to 39,546.59, 54,572.96 and 21,640.39 is: 29,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,546.59 : 54,572.96 = 21,640.39 : x
  2. Step 2: Convert to fraction form
    39,546.59/54,572.96 = 21,640.39/x
  3. Step 3: Cross multiply
    39,546.59x = 54,572.96 × 21,640.39
  4. Step 4: Simplify right side
    39,546.59x = 1,180,980,137.85
  5. Step 5: Solve for x
    x = 1,180,980,137.85/39,546.59
  6. Step 6: Final answer
    x = 29,863.01

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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.