Home / 39,853.39-59,786.57-13,555.39

Finding the Fourth Proportional to 39,853.39, 59,786.57 and 13,555.39

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Solution

The fourth proportional to 39,853.39, 59,786.57 and 13,555.39 is: 20,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,853.39 : 59,786.57 = 13,555.39 : x
  2. Step 2: Convert to fraction form
    39,853.39/59,786.57 = 13,555.39/x
  3. Step 3: Cross multiply
    39,853.39x = 59,786.57 × 13,555.39
  4. Step 4: Simplify right side
    39,853.39x = 810,430,273.11
  5. Step 5: Solve for x
    x = 810,430,273.11/39,853.39
  6. Step 6: Final answer
    x = 20,335.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.