Home / 39,358.26-54,313.70-21,453.48

Finding the Fourth Proportional to 39,358.26, 54,313.70 and 21,453.48

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Solution

The fourth proportional to 39,358.26, 54,313.70 and 21,453.48 is: 29,605.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,358.26 : 54,313.70 = 21,453.48 : x
  2. Step 2: Convert to fraction form
    39,358.26/54,313.70 = 21,453.48/x
  3. Step 3: Cross multiply
    39,358.26x = 54,313.70 × 21,453.48
  4. Step 4: Simplify right side
    39,358.26x = 1,165,217,876.68
  5. Step 5: Solve for x
    x = 1,165,217,876.68/39,358.26
  6. Step 6: Final answer
    x = 29,605.42

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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.