Home / 39,311.82-54,248.72-21,406.82

Finding the Fourth Proportional to 39,311.82, 54,248.72 and 21,406.82

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Solution

The fourth proportional to 39,311.82, 54,248.72 and 21,406.82 is: 29,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,311.82 : 54,248.72 = 21,406.82 : x
  2. Step 2: Convert to fraction form
    39,311.82/54,248.72 = 21,406.82/x
  3. Step 3: Cross multiply
    39,311.82x = 54,248.72 × 21,406.82
  4. Step 4: Simplify right side
    39,311.82x = 1,161,292,205.99
  5. Step 5: Solve for x
    x = 1,161,292,205.99/39,311.82
  6. Step 6: Final answer
    x = 29,540.54

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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.