Home / 39,296.70-54,227.79-21,391.34

Finding the Fourth Proportional to 39,296.70, 54,227.79 and 21,391.34

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Solution

The fourth proportional to 39,296.70, 54,227.79 and 21,391.34 is: 29,519.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,296.70 : 54,227.79 = 21,391.34 : x
  2. Step 2: Convert to fraction form
    39,296.70/54,227.79 = 21,391.34/x
  3. Step 3: Cross multiply
    39,296.70x = 54,227.79 × 21,391.34
  4. Step 4: Simplify right side
    39,296.70x = 1,160,004,822.20
  5. Step 5: Solve for x
    x = 1,160,004,822.20/39,296.70
  6. Step 6: Final answer
    x = 29,519.14

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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.