Home / 39,380.39-54,346.31-22,385.35

Finding the Fourth Proportional to 39,380.39, 54,346.31 and 22,385.35

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Solution

The fourth proportional to 39,380.39, 54,346.31 and 22,385.35 is: 30,892.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,380.39 : 54,346.31 = 22,385.35 : x
  2. Step 2: Convert to fraction form
    39,380.39/54,346.31 = 22,385.35/x
  3. Step 3: Cross multiply
    39,380.39x = 54,346.31 × 22,385.35
  4. Step 4: Simplify right side
    39,380.39x = 1,216,560,922.77
  5. Step 5: Solve for x
    x = 1,216,560,922.77/39,380.39
  6. Step 6: Final answer
    x = 30,892.55

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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.