Home / 39,353.25-54,305.89-21,447.87

Finding the Fourth Proportional to 39,353.25, 54,305.89 and 21,447.87

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Solution

The fourth proportional to 39,353.25, 54,305.89 and 21,447.87 is: 29,597.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,353.25 : 54,305.89 = 21,447.87 : x
  2. Step 2: Convert to fraction form
    39,353.25/54,305.89 = 21,447.87/x
  3. Step 3: Cross multiply
    39,353.25x = 54,305.89 × 21,447.87
  4. Step 4: Simplify right side
    39,353.25x = 1,164,745,397.42
  5. Step 5: Solve for x
    x = 1,164,745,397.42/39,353.25
  6. Step 6: Final answer
    x = 29,597.19

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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.