Home / 39,445.07-54,433.78-21,540.02

Finding the Fourth Proportional to 39,445.07, 54,433.78 and 21,540.02

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Solution

The fourth proportional to 39,445.07, 54,433.78 and 21,540.02 is: 29,725.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,445.07 : 54,433.78 = 21,540.02 : x
  2. Step 2: Convert to fraction form
    39,445.07/54,433.78 = 21,540.02/x
  3. Step 3: Cross multiply
    39,445.07x = 54,433.78 × 21,540.02
  4. Step 4: Simplify right side
    39,445.07x = 1,172,504,383.86
  5. Step 5: Solve for x
    x = 1,172,504,383.86/39,445.07
  6. Step 6: Final answer
    x = 29,725.00

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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.