Home / 39,445.44-54,434.28-21,540.39

Finding the Fourth Proportional to 39,445.44, 54,434.28 and 21,540.39

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Solution

The fourth proportional to 39,445.44, 54,434.28 and 21,540.39 is: 29,725.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,445.44 : 54,434.28 = 21,540.39 : x
  2. Step 2: Convert to fraction form
    39,445.44/54,434.28 = 21,540.39/x
  3. Step 3: Cross multiply
    39,445.44x = 54,434.28 × 21,540.39
  4. Step 4: Simplify right side
    39,445.44x = 1,172,535,620.57
  5. Step 5: Solve for x
    x = 1,172,535,620.57/39,445.44
  6. Step 6: Final answer
    x = 29,725.50

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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.