Home / 39,446.49-54,437.47-21,542.56

Finding the Fourth Proportional to 39,446.49, 54,437.47 and 21,542.56

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Solution

The fourth proportional to 39,446.49, 54,437.47 and 21,542.56 is: 29,729.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,446.49 : 54,437.47 = 21,542.56 : x
  2. Step 2: Convert to fraction form
    39,446.49/54,437.47 = 21,542.56/x
  3. Step 3: Cross multiply
    39,446.49x = 54,437.47 × 21,542.56
  4. Step 4: Simplify right side
    39,446.49x = 1,172,722,273.77
  5. Step 5: Solve for x
    x = 1,172,722,273.77/39,446.49
  6. Step 6: Final answer
    x = 29,729.44

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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.