Home / 39,546.78-54,574.38-21,397.44

Finding the Fourth Proportional to 39,546.78, 54,574.38 and 21,397.44

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Solution

The fourth proportional to 39,546.78, 54,574.38 and 21,397.44 is: 29,528.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,546.78 : 54,574.38 = 21,397.44 : x
  2. Step 2: Convert to fraction form
    39,546.78/54,574.38 = 21,397.44/x
  3. Step 3: Cross multiply
    39,546.78x = 54,574.38 × 21,397.44
  4. Step 4: Simplify right side
    39,546.78x = 1,167,752,021.59
  5. Step 5: Solve for x
    x = 1,167,752,021.59/39,546.78
  6. Step 6: Final answer
    x = 29,528.37

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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.