Home / 39,358.56-54,314.49-21,453.57

Finding the Fourth Proportional to 39,358.56, 54,314.49 and 21,453.57

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Solution

The fourth proportional to 39,358.56, 54,314.49 and 21,453.57 is: 29,605.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,358.56 : 54,314.49 = 21,453.57 : x
  2. Step 2: Convert to fraction form
    39,358.56/54,314.49 = 21,453.57/x
  3. Step 3: Cross multiply
    39,358.56x = 54,314.49 × 21,453.57
  4. Step 4: Simplify right side
    39,358.56x = 1,165,239,713.23
  5. Step 5: Solve for x
    x = 1,165,239,713.23/39,358.56
  6. Step 6: Final answer
    x = 29,605.75

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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.