Home / 39,705.33-54,793.08-21,800.64

Finding the Fourth Proportional to 39,705.33, 54,793.08 and 21,800.64

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Solution

The fourth proportional to 39,705.33, 54,793.08 and 21,800.64 is: 30,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705.33 : 54,793.08 = 21,800.64 : x
  2. Step 2: Convert to fraction form
    39,705.33/54,793.08 = 21,800.64/x
  3. Step 3: Cross multiply
    39,705.33x = 54,793.08 × 21,800.64
  4. Step 4: Simplify right side
    39,705.33x = 1,194,524,211.57
  5. Step 5: Solve for x
    x = 1,194,524,211.57/39,705.33
  6. Step 6: Final answer
    x = 30,084.73

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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.