Home / 39,447.70-54,436.23-21,542.68

Finding the Fourth Proportional to 39,447.70, 54,436.23 and 21,542.68

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Solution

The fourth proportional to 39,447.70, 54,436.23 and 21,542.68 is: 29,728.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,447.70 : 54,436.23 = 21,542.68 : x
  2. Step 2: Convert to fraction form
    39,447.70/54,436.23 = 21,542.68/x
  3. Step 3: Cross multiply
    39,447.70x = 54,436.23 × 21,542.68
  4. Step 4: Simplify right side
    39,447.70x = 1,172,702,283.30
  5. Step 5: Solve for x
    x = 1,172,702,283.30/39,447.70
  6. Step 6: Final answer
    x = 29,728.03

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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.