Home / 39,505.34-54,517.55-21,600.35

Finding the Fourth Proportional to 39,505.34, 54,517.55 and 21,600.35

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Solution

The fourth proportional to 39,505.34, 54,517.55 and 21,600.35 is: 29,808.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,505.34 : 54,517.55 = 21,600.35 : x
  2. Step 2: Convert to fraction form
    39,505.34/54,517.55 = 21,600.35/x
  3. Step 3: Cross multiply
    39,505.34x = 54,517.55 × 21,600.35
  4. Step 4: Simplify right side
    39,505.34x = 1,177,597,780.55
  5. Step 5: Solve for x
    x = 1,177,597,780.55/39,505.34
  6. Step 6: Final answer
    x = 29,808.58

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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.