Home / 37,982.39-52,415.38-20,986.58

Finding the Fourth Proportional to 37,982.39, 52,415.38 and 20,986.58

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Solution

The fourth proportional to 37,982.39, 52,415.38 and 20,986.58 is: 28,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,982.39 : 52,415.38 = 20,986.58 : x
  2. Step 2: Convert to fraction form
    37,982.39/52,415.38 = 20,986.58/x
  3. Step 3: Cross multiply
    37,982.39x = 52,415.38 × 20,986.58
  4. Step 4: Simplify right side
    37,982.39x = 1,100,019,251.06
  5. Step 5: Solve for x
    x = 1,100,019,251.06/37,982.39
  6. Step 6: Final answer
    x = 28,961.30

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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.