Home / 39,394.98-54,385.12-30,422.34

Finding the Fourth Proportional to 39,394.98, 54,385.12 and 30,422.34

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Solution

The fourth proportional to 39,394.98, 54,385.12 and 30,422.34 is: 41,998.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,394.98 : 54,385.12 = 30,422.34 : x
  2. Step 2: Convert to fraction form
    39,394.98/54,385.12 = 30,422.34/x
  3. Step 3: Cross multiply
    39,394.98x = 54,385.12 × 30,422.34
  4. Step 4: Simplify right side
    39,394.98x = 1,654,522,611.58
  5. Step 5: Solve for x
    x = 1,654,522,611.58/39,394.98
  6. Step 6: Final answer
    x = 41,998.31

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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.