Home / 39,446.08-54,433.44-21,540.80

Finding the Fourth Proportional to 39,446.08, 54,433.44 and 21,540.80

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Solution

The fourth proportional to 39,446.08, 54,433.44 and 21,540.80 is: 29,725.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,446.08 : 54,433.44 = 21,540.80 : x
  2. Step 2: Convert to fraction form
    39,446.08/54,433.44 = 21,540.80/x
  3. Step 3: Cross multiply
    39,446.08x = 54,433.44 × 21,540.80
  4. Step 4: Simplify right side
    39,446.08x = 1,172,539,844.35
  5. Step 5: Solve for x
    x = 1,172,539,844.35/39,446.08
  6. Step 6: Final answer
    x = 29,725.13

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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.