Home / 39,741.21-54,840.15-21,836.97

Finding the Fourth Proportional to 39,741.21, 54,840.15 and 21,836.97

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Solution

The fourth proportional to 39,741.21, 54,840.15 and 21,836.97 is: 30,133.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,741.21 : 54,840.15 = 21,836.97 : x
  2. Step 2: Convert to fraction form
    39,741.21/54,840.15 = 21,836.97/x
  3. Step 3: Cross multiply
    39,741.21x = 54,840.15 × 21,836.97
  4. Step 4: Simplify right side
    39,741.21x = 1,197,542,710.35
  5. Step 5: Solve for x
    x = 1,197,542,710.35/39,741.21
  6. Step 6: Final answer
    x = 30,133.52

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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.