Home / 39,208.27-54,108.20-21,304.43

Finding the Fourth Proportional to 39,208.27, 54,108.20 and 21,304.43

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Solution

The fourth proportional to 39,208.27, 54,108.20 and 21,304.43 is: 29,400.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,208.27 : 54,108.20 = 21,304.43 : x
  2. Step 2: Convert to fraction form
    39,208.27/54,108.20 = 21,304.43/x
  3. Step 3: Cross multiply
    39,208.27x = 54,108.20 × 21,304.43
  4. Step 4: Simplify right side
    39,208.27x = 1,152,744,359.33
  5. Step 5: Solve for x
    x = 1,152,744,359.33/39,208.27
  6. Step 6: Final answer
    x = 29,400.54

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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.